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TestHelpers.java
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TestHelpers.java
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/*
* Copyright OpenSearch Contributors
* SPDX-License-Identifier: Apache-2.0
*/
package org.opensearch.securityanalytics;
import com.carrotsearch.randomizedtesting.generators.RandomNumbers;
import org.apache.lucene.tests.util.LuceneTestCase;
import org.opensearch.common.xcontent.LoggingDeprecationHandler;
import org.opensearch.common.xcontent.XContentFactory;
import org.opensearch.common.xcontent.XContentType;
import org.opensearch.commons.alerting.model.IntervalSchedule;
import org.opensearch.commons.alerting.model.Schedule;
import org.opensearch.commons.alerting.model.action.Action;
import org.opensearch.commons.alerting.model.action.Throttle;
import org.opensearch.commons.authuser.User;
import org.opensearch.core.common.bytes.BytesReference;
import org.opensearch.core.xcontent.NamedXContentRegistry;
import org.opensearch.core.xcontent.ToXContent;
import org.opensearch.core.xcontent.XContentBuilder;
import org.opensearch.core.xcontent.XContentParser;
import org.opensearch.script.Script;
import org.opensearch.script.ScriptType;
import org.opensearch.securityanalytics.commons.model.IOCType;
import org.opensearch.securityanalytics.model.CorrelationQuery;
import org.opensearch.securityanalytics.model.CorrelationRule;
import org.opensearch.securityanalytics.model.CorrelationRuleTrigger;
import org.opensearch.securityanalytics.model.CustomLogType;
import org.opensearch.securityanalytics.model.Detector;
import org.opensearch.securityanalytics.model.DetectorInput;
import org.opensearch.securityanalytics.model.DetectorRule;
import org.opensearch.securityanalytics.model.DetectorTrigger;
import org.opensearch.securityanalytics.model.ThreatIntelFeedData;
import org.opensearch.securityanalytics.model.threatintel.IocFinding;
import org.opensearch.securityanalytics.model.threatintel.ThreatIntelAlert;
import org.opensearch.securityanalytics.threatIntel.common.RefreshType;
import org.opensearch.securityanalytics.threatIntel.common.SourceConfigType;
import org.opensearch.securityanalytics.threatIntel.common.TIFJobState;
import org.opensearch.securityanalytics.threatIntel.model.DefaultIocStoreConfig;
import org.opensearch.securityanalytics.threatIntel.model.IocStoreConfig;
import org.opensearch.securityanalytics.threatIntel.model.S3Source;
import org.opensearch.securityanalytics.threatIntel.model.SATIFSourceConfig;
import org.opensearch.securityanalytics.threatIntel.model.SATIFSourceConfigDto;
import org.opensearch.securityanalytics.threatIntel.model.Source;
import org.opensearch.test.OpenSearchTestCase;
import org.opensearch.test.rest.OpenSearchRestTestCase;
import java.io.IOException;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.stream.Collectors;
import static org.opensearch.test.OpenSearchTestCase.randomInt;
public class TestHelpers {
static class AccessRoles {
static final String ALL_ACCESS_ROLE = "all_access";
}
public static Detector randomDetector(List<String> rules) {
DetectorInput input = new DetectorInput("windows detector for security analytics", List.of("windows"), Collections.emptyList(),
rules.stream().map(DetectorRule::new).collect(Collectors.toList()));
return randomDetector(null, null, null, List.of(input), List.of(), null, null, null, null, false);
}
public static Detector randomDetector(List<String> rules, String detectorType) {
DetectorInput input = new DetectorInput("windows detector for security analytics", List.of("windows"), Collections.emptyList(),
rules.stream().map(DetectorRule::new).collect(Collectors.toList()));
return randomDetector(null, detectorType, null, List.of(input), List.of(), null, null, null, null, false);
}
public static Detector randomDetectorWithInputs(List<DetectorInput> inputs) {
return randomDetector(null, null, null, inputs, List.of(), null, null, null, null, false);
}
public static Detector randomDetectorWithInputsAndThreatIntel(List<DetectorInput> inputs, Boolean threatIntel) {
return randomDetector(null, null, null, inputs, List.of(), null, null, null, null, threatIntel);
}
public static Detector randomDetectorWithInputsAndThreatIntelAndTriggers(List<DetectorInput> inputs, Boolean threatIntel, List<DetectorTrigger> triggers) {
return randomDetector(null, null, null, inputs, triggers, null, null, null, null, threatIntel);
}
public static Detector randomDetectorWithInputsAndTriggers(List<DetectorInput> inputs, List<DetectorTrigger> triggers) {
return randomDetector(null, null, null, inputs, triggers, null, null, null, null, false);
}
public static Detector randomDetectorWithInputs(List<DetectorInput> inputs, String detectorType) {
return randomDetector(null, detectorType, null, inputs, List.of(), null, null, null, null, false);
}
public static Detector randomDetectorWithTriggers(List<DetectorTrigger> triggers) {
return randomDetector(null, null, null, List.of(), triggers, null, null, null, null, false);
}
public static Detector randomDetectorWithTriggers(List<String> rules, List<DetectorTrigger> triggers) {
DetectorInput input = new DetectorInput("windows detector for security analytics", List.of("windows"), Collections.emptyList(),
rules.stream().map(DetectorRule::new).collect(Collectors.toList()));
return randomDetector(null, null, null, List.of(input), triggers, null, null, null, null, false);
}
public static Detector randomDetectorWithTriggers(List<String> rules, List<DetectorTrigger> triggers, List<String> inputIndices) {
DetectorInput input = new DetectorInput("windows detector for security analytics", inputIndices, Collections.emptyList(),
rules.stream().map(DetectorRule::new).collect(Collectors.toList()));
return randomDetector(null, null, null, List.of(input), triggers, null, true, null, null, false);
}
public static Detector randomDetectorWithTriggersAndScheduleAndEnabled(List<String> rules, List<DetectorTrigger> triggers, Schedule schedule, boolean enabled) {
DetectorInput input = new DetectorInput("windows detector for security analytics", List.of("windows"), Collections.emptyList(),
rules.stream().map(DetectorRule::new).collect(Collectors.toList()));
return randomDetector(null, null, null, List.of(input), triggers, schedule, enabled, null, null, false);
}
public static Detector randomDetectorWithTriggers(List<String> rules, List<DetectorTrigger> triggers, String detectorType, DetectorInput input) {
return randomDetector(null, detectorType, null, List.of(input), triggers, null, null, null, null, false);
}
public static Detector randomDetectorWithInputsAndTriggersAndType(List<DetectorInput> inputs, List<DetectorTrigger> triggers, String detectorType) {
return randomDetector(null, detectorType, null, inputs, triggers, null, null, null, null, false);
}
public static Detector randomDetector(String name,
String detectorType,
User user,
List<DetectorInput> inputs,
List<DetectorTrigger> triggers,
Schedule schedule,
Boolean enabled,
Instant enabledTime,
Instant lastUpdateTime,
Boolean threatIntel) {
if (name == null) {
name = OpenSearchRestTestCase.randomAlphaOfLength(10);
}
if (detectorType == null) {
detectorType = randomDetectorType();
}
if (user == null) {
user = randomUser();
}
if (inputs == null) {
inputs = Collections.emptyList();
}
if (schedule == null) {
schedule = new IntervalSchedule(5, ChronoUnit.MINUTES, null);
}
if (enabled == null) {
enabled = OpenSearchTestCase.randomBoolean();
}
if (enabledTime == null) {
if (enabled) {
enabledTime = Instant.now().truncatedTo(ChronoUnit.MILLIS);
}
}
if (lastUpdateTime == null) {
lastUpdateTime = Instant.now().truncatedTo(ChronoUnit.MILLIS);
}
if (inputs.size() == 0) {
inputs = new ArrayList<>();
DetectorInput input = new DetectorInput("windows detector for security analytics", List.of("windows"), Collections.emptyList(), null);
inputs.add(input);
}
if (triggers.size() == 0) {
triggers = new ArrayList<>();
DetectorTrigger trigger = new DetectorTrigger(null, "windows-trigger", "1", List.of(randomDetectorType()), List.of("QuarksPwDump Clearing Access History"), List.of("high"), List.of("T0008"), List.of(), List.of());
triggers.add(trigger);
}
return new Detector(null, null, name, enabled, schedule, lastUpdateTime, enabledTime, detectorType, user, inputs, triggers, Collections.singletonList(""), "", "", "", "", "", "", Collections.emptyMap(), Collections.emptyList(), threatIntel);
}
public static CustomLogType randomCustomLogType(String name, String description, String category, String source) {
if (name == null) {
name = "custom-log-type";
}
if (description == null) {
description = "custom-log-type-desc";
}
if (category == null) {
category = "Other";
}
if (source == null) {
source = "Sigma";
}
return new CustomLogType(null, null, name, description, category, source, null);
}
public static ThreatIntelFeedData randomThreatIntelFeedData() {
return new ThreatIntelFeedData(
"IP_ADDRESS",
"ip",
"alientVault",
Instant.now()
);
}
public static Detector randomDetectorWithNoUser() {
String name = OpenSearchRestTestCase.randomAlphaOfLength(10);
String detectorType = randomDetectorType();
List<DetectorInput> inputs = Collections.emptyList();
Schedule schedule = new IntervalSchedule(5, ChronoUnit.MINUTES, null);
Boolean enabled = OpenSearchTestCase.randomBoolean();
Instant enabledTime = enabled ? Instant.now().truncatedTo(ChronoUnit.MILLIS) : null;
Instant lastUpdateTime = Instant.now().truncatedTo(ChronoUnit.MILLIS);
return new Detector(
null,
null,
name,
enabled,
schedule,
lastUpdateTime,
enabledTime,
detectorType,
null,
inputs,
Collections.emptyList(),
Collections.singletonList(""),
"",
"",
"",
"",
"",
"",
Collections.emptyMap(),
Collections.emptyList(),
false
);
}
public static CorrelationRule randomCorrelationRule(String name) {
name = name.isEmpty() ? "><script>prompt(document.domain)</script>" : name;
return new CorrelationRule(CorrelationRule.NO_ID, CorrelationRule.NO_VERSION, name,
List.of(
new CorrelationQuery("vpc_flow1", "dstaddr:192.168.1.*", "network", null),
new CorrelationQuery("ad_logs1", "azure.platformlogs.result_type:50126", "ad_ldap", null)
), 300000L, null);
}
public static CorrelationRule randomCorrelationRuleWithTrigger(String name) {
name = name.isEmpty() ? "><script>prompt(document.domain)</script>" : name;
List<Action> actions = new ArrayList<Action>();
CorrelationRuleTrigger trigger = new CorrelationRuleTrigger("trigger-123", "Trigger 1", "high", actions);
return new CorrelationRule(CorrelationRule.NO_ID, CorrelationRule.NO_VERSION, name,
List.of(
new CorrelationQuery("vpc_flow1", "dstaddr:192.168.1.*", "network", null),
new CorrelationQuery("ad_logs1", "azure.platformlogs.result_type:50126", "ad_ldap", null)
), 300000L, trigger);
}
public static String randomRule() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 22\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithRawField() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" eventName: testinghere\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithNotCondition() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection1:\n" +
" AccountType: TestAccountType\n" +
" selection2:\n" +
" AccountName: TestAccountName\n" +
" selection3:\n" +
" EventID: 22\n" +
" condition: (not selection1 and not selection2) and selection3\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithCriticalSeverity() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 22\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: critical";
}
public static String randomRuleWithNotConditionBoolAndNum() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection1:\n" +
" Initiated: \"false\"\n" +
" selection2:\n" +
" AccountName: TestAccountName\n" +
" selection3:\n" +
" EventID: 21\n" +
" condition: not selection1 and not selection3\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomNullRule() {
return "title: null field\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firew all to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 22\n" +
" RecordNumber: null\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomCloudtrailRuleForCorrelations(String value) {
return "id: 5f92fff9-82e2-48ab-8fc1-8b133556a551\n" +
"logsource:\n" +
" product: cloudtrail\n" +
"title: AWS User Created\n" +
"description: AWS User Created\n" +
"tags:\n" +
" - attack.test1\n" +
"falsepositives:\n" +
" - Legit User Account Administration\n" +
"level: high\n" +
"date: 2022/01/01\n" +
"status: experimental\n" +
"references:\n" +
" - 'https://github.com/RhinoSecurityLabs/AWS-IAM-Privilege-Escalation'\n" +
"author: toffeebr33k\n" +
"detection:\n" +
" condition: selection_source\n" +
" selection_source:\n" +
" EventName:\n" +
" - " + value;
}
public static String randomRuleForMappingView(String field) {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" " + field + ": 'ACL'\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleForCustomLogType() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 22\n" +
" Author: 'Hello'\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithAlias() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" event_uid: 22\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithKeywords() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 21\n" +
" keywords:\n" +
" - 1996\n" +
" - EC2AMAZ*\n" +
" condition: selection or keywords\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithStringKeywords() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 21\n" +
" keywords:\n" +
" - \"INFO\"\n" +
" condition: selection or keywords\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithDateKeywords() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.defense_evasion\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 21\n" +
" keywords:\n" +
" - \"2020-02-04T14:59:39.343541+00:00\"\n" +
" condition: selection or keywords\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String countAggregationTestRule() {
return " title: Test\n" +
" id: 39f919f3-980b-4e6f-a975-8af7e507ef2b\n" +
" status: test\n" +
" level: critical\n" +
" description: Detects QuarksPwDump clearing access history in hive\n" +
" author: Florian Roth\n" +
" date: 2017/05/15\n" +
" logsource:\n" +
" category: test_category\n" +
" product: test_product\n" +
" detection:\n" +
" sel:\n" +
" fieldA: valueA\n" +
" fieldB: valueB\n" +
" fieldC: valueC\n" +
" condition: sel | count(*) > 1";
}
public static String sumAggregationTestRule() {
return " title: Test\n" +
" id: 39f919f3-980b-4e6f-a975-8af7e507ef2b\n" +
" status: test\n" +
" level: critical\n" +
" description: Detects QuarksPwDump clearing access history in hive\n" +
" author: Florian Roth\n" +
" date: 2017/05/15\n" +
" logsource:\n" +
" category: test_category\n" +
" product: test_product\n" +
" detection:\n" +
" sel:\n" +
" fieldA: 123\n" +
" fieldB: 111\n" +
" fieldC: valueC\n" +
" condition: sel | sum(fieldA) by fieldB > 110";
}
public static String productIndexMaxAggRule() {
return " title: Test\n" +
" id: 5f92fff9-82e3-48eb-8fc1-8b133556a551\n" +
" status: test\n" +
" level: critical\n" +
" description: Detects QuarksPwDump clearing access history in hive\n" +
" author: Florian Roth\n" +
" date: 2017/05/15\n" +
" logsource:\n" +
" category: test_category\n" +
" product: test_product\n" +
" detection:\n" +
" sel:\n" +
" fieldA: 123\n" +
" fieldB: 111\n" +
" fieldC: valueC\n" +
" condition: sel | max(fieldA) by fieldB > 110";
}
public static String randomProductDocument() {
return "{\n" +
" \"name\": \"laptop\",\n" +
" \"fieldA\": 123,\n" +
" \"mappedB\": 111,\n" +
" \"fieldC\": \"valueC\"\n" +
"}\n";
}
public static String randomProductDocumentWithTime(long time) {
return "{\n" +
" \"fieldA\": 123,\n" +
" \"mappedB\": 111,\n" +
" \"time\": " + (time) + ",\n" +
" \"fieldC\": \"valueC\"\n" +
"}\n";
}
public static String randomEditedRule() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.lateral_movement\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 24\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomEditedRuleInvalidSyntax(String title) {
return "title: " + title + "\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.lateral_movement\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"logsource:\n" +
" product: rpc_firewall\n" +
" category: application\n" +
" definition: 'Requirements: install and apply the RPC Firewall to all processes with \"audit:true action:block uuid:df1941c5-fe89-4e79-bf10-463657acf44d or c681d488-d850-11d0-8c52-00c04fd90f7e'\n" +
"detection:\n" +
" selection:\n" +
" EventID: 24\n" +
" condition: selection\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithErrors() {
return "title: Remote Encrypting File System Abuse\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.lateral_movement\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String randomRuleWithErrors(String title) {
return "title: " + title + "\n" +
"id: 5f92fff9-82e2-48eb-8fc1-8b133556a551\n" +
"description: Detects remote RPC calls to possibly abuse remote encryption service via MS-EFSR\n" +
"references:\n" +
" - https://attack.mitre.org/tactics/TA0008/\n" +
" - https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-36942\n" +
" - https://github.com/jsecurity101/MSRPC-to-ATTACK/blob/main/documents/MS-EFSR.md\n" +
" - https://github.com/zeronetworks/rpcfirewall\n" +
" - https://zeronetworks.com/blog/stopping_lateral_movement_via_the_rpc_firewall/\n" +
"tags:\n" +
" - attack.lateral_movement\n" +
"status: experimental\n" +
"author: Sagie Dulce, Dekel Paz\n" +
"date: 2022/01/01\n" +
"modified: 2022/01/01\n" +
"falsepositives:\n" +
" - Legitimate usage of remote file encryption\n" +
"level: high";
}
public static String toJsonStringWithUser(Detector detector) throws IOException {
XContentBuilder builder = XContentFactory.jsonBuilder();
builder = detector.toXContentWithUser(builder, ToXContent.EMPTY_PARAMS);
return BytesReference.bytes(builder).utf8ToString();
}
public static String toJsonString(IocFinding iocFinding) throws IOException {
XContentBuilder builder = XContentFactory.jsonBuilder();
builder = iocFinding.toXContent(builder, ToXContent.EMPTY_PARAMS);
return BytesReference.bytes(builder).utf8ToString();
}
public static String toJsonString(ThreatIntelAlert alert) throws IOException {
XContentBuilder builder = XContentFactory.jsonBuilder();
builder = alert.toXContent(builder, ToXContent.EMPTY_PARAMS);
return BytesReference.bytes(builder).utf8ToString();
}
public static String toJsonString(ThreatIntelFeedData threatIntelFeedData) throws IOException {
XContentBuilder builder = XContentFactory.jsonBuilder();
builder = threatIntelFeedData.toXContent(builder, ToXContent.EMPTY_PARAMS);
return BytesReference.bytes(builder).utf8ToString();
}
public static User randomUser() {
return new User(
OpenSearchRestTestCase.randomAlphaOfLength(10),
List.of(
OpenSearchRestTestCase.randomAlphaOfLength(10),
OpenSearchRestTestCase.randomAlphaOfLength(10)
),
List.of(OpenSearchRestTestCase.randomAlphaOfLength(10), AccessRoles.ALL_ACCESS_ROLE),
List.of("test_attr=test")
);
}
public static User randomUserEmpty() {
return new User(
"",
List.of(),
List.of(),
List.of()
);
}
public static String randomDetectorType() {
return "test_windows";
}
public static DetectorInput randomDetectorInput() {
String description = OpenSearchRestTestCase.randomAlphaOfLength(randomInt(10));
List<String> indices = new ArrayList<>();
for (int i = 0; i < 10; ++i) {
indices.add(OpenSearchRestTestCase.randomAlphaOfLength(10));
}
List<DetectorRule> detectorRules = new ArrayList<>();
for (int i = 0; i < 10; ++i) {
detectorRules.add(randomDetectorRule());
}
return new DetectorInput(description, indices, detectorRules, detectorRules);
}
public static DetectorRule randomDetectorRule() {
String id = OpenSearchRestTestCase.randomAlphaOfLength(10);
return new DetectorRule(id);
}
public static Action randomAction(String destinationId) {
String name = OpenSearchRestTestCase.randomUnicodeOfLength(10);
Script template = randomTemplateScript("Detector {{ctx.detector.name}} just entered alert status. Please investigate the issue.\n" +
" - Trigger: {{ctx.trigger.name}}\n" +
" - Severity: {{ctx.trigger.severity}}", null);
Boolean throttleEnabled = false;
Throttle throttle = randomThrottle(null, null);
return new Action(name, destinationId, template, template, throttleEnabled, throttle, OpenSearchRestTestCase.randomAlphaOfLength(10), null);
}
public static Action randomThreatInteMonitorAction(String destinationId) {
String name = OpenSearchRestTestCase.randomUnicodeOfLength(10);
Script template = randomTemplateScript("Threat intel Monitor {{ctx.monitor.name}} just entered alert status. Please investigate the issue.\n" +
" - Trigger: {{ctx.trigger.name}}\n" +
" - Severity: {{ctx.trigger.severity}}", null);
Boolean throttleEnabled = false;
Throttle throttle = randomThrottle(null, null);
return new Action(name, destinationId, template, template, throttleEnabled, throttle, OpenSearchRestTestCase.randomAlphaOfLength(10), null);
}
public static Script randomTemplateScript(String source, Map<String, Object> params) {
if (params == null) {
params = new HashMap<>();
}
return new Script(ScriptType.INLINE, Script.DEFAULT_TEMPLATE_LANG, source, params);
}
public static Throttle randomThrottle(Integer value, ChronoUnit unit) {
if (value == null) {
value = RandomNumbers.randomIntBetween(LuceneTestCase.random(), 60, 120);
}
if (unit == null) {
unit = ChronoUnit.MINUTES;
}
return new Throttle(value, unit);
}
public static String randomIndex() {
return "windows";
}
public static String randomNetFlowDoc() {
return "{" +
" \"netflow.event_data.SourceAddress\":\"10.50.221.10\"," +
" \"netflow.event_data.DestinationPort\":1234," +
" \"netflow.event_data.DestAddress\":\"10.53.111.14\"," +
" \"netflow.event_data.SourcePort\":4444" +
"}";
}
public static String netFlowMappings() {
return " \"properties\": {" +
" \"netflow.event_data.SourceAddress\": {" +
" \"type\": \"ip\"" +
" }," +
" \"netflow.event_data.DestinationPort\": {" +
" \"type\": \"integer\"" +
" }," +
" \"netflow.event_data.DestAddress\": {" +
" \"type\": \"ip\"" +
" }," +
" \"netflow.event_data.SourcePort\": {" +
" \"type\": \"integer\"" +
" }," +
" \"netflow.event.stop\": {" +
" \"type\": \"integer\"" +
" }," +
" \"dns.event.stop\": {" +
" \"type\": \"integer\"" +
" }," +
" \"ipx.event.stop\": {" +
" \"type\": \"integer\"" +
" }," +
" \"plain1\": {" +
" \"type\": \"integer\"" +
" }," +
" \"user\":{" +
" \"type\":\"nested\"," +
" \"properties\":{" +
" \"first\":{" +
" \"type\":\"text\"," +
" \"fields\":{" +
" \"keyword\":{" +
" \"type\":\"keyword\"," +
" \"ignore_above\":256" +
"}" +
"}" +
"}," +
" \"last\":{" +
"\"type\":\"text\"," +
"\"fields\":{" +
" \"keyword\":{" +
" \"type\":\"keyword\"," +
" \"ignore_above\":256" +
"}" +
"}" +
"}" +
"}" +
"}" +
" }";
}
public static String productIndexMapping() {
return "\"properties\":{\n" +
" \"name\":{\n" +
" \"type\":\"keyword\"\n" +
" },\n" +
" \"fieldA\":{\n" +