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aws-sts.rules
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# Sagan aws-sts.rules
# Copyright (c) 2009-2023. Quadrant Information Security <www.quadrantsec.com>
# All rights reserved.
#
# Please submit any custom rules or ideas to sagan-submit@quadrantsec.com or the sagan-sigs mailing list
#
#*************************************************************
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
# following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions and the following
# disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other materials provided with the distribution.
# * Neither the name of the nor the names of its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#*************************************************************
# rules by "Bryant Smith" <bsmith@quadrantsec.com>
# 03/22/2023
#alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (AssumeRole) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|AssumeRole"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011429; rev:1;)
alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (AssumeRoleWithSAML) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|AssumeRoleWithSAML"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011430; rev:1;)
alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (AssumeRoleWithWebIdentity) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|AssumeRoleWithWebIdentity"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011431; rev:1;)
alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (DecodeAuthorizationMessage) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|DecodeAuthorizationMessage"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011432; rev:1;)
alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (GetAccessKeyInfo) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|GetAccessKeyInfo"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011433; rev:1;)
#alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (GetCallerIdentity) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|GetCallerIdentity"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011434; rev:1;)
alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (GetFederationToken) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|GetFederationToken"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011435; rev:1;)
alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service event detected (GetSessionToken) "; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|GetSessionToken"; classtype:system-event; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5011436; rev:1;)
alert any $HOME_NET any -> $HOME_NET any (msg:"[AWS-STS] Security Token Service Discovery Command Event Detected (GetCallerIdentity)"; program:sts.amazonaws.com; content:"eventName|22 3a 20 22|GetCallerIdentity|22|"; classtype:system-event; reference:url,https://unit42.paloaltonetworks.com/large-scale-cloud-extortion-operation/; reference:url,docs.aws.amazon.com/STS/latest/APIReference/welcome.html; sid:5015085; rev:1; metadata:mitre_tactic_id TA0007;)