From f9c832ec6214df3ea27ed0b10b5e5edfe5893e50 Mon Sep 17 00:00:00 2001 From: "github-actions[bot]" <41898282+github-actions[bot]@users.noreply.github.com> Date: Wed, 4 Feb 2026 20:26:59 +0000 Subject: [PATCH] Sigma Rule Update (2026-02-04 20:26:52) (#241) Co-authored-by: YamatoSecurity --- config/security_rules.json | 291 ++++++++++++++++++++----------------- 1 file changed, 158 insertions(+), 133 deletions(-) diff --git a/config/security_rules.json b/config/security_rules.json index 9bb7bff1..3032caf6 100644 --- a/config/security_rules.json +++ b/config/security_rules.json @@ -424,8 +424,8 @@ "T1059.001", "TA0008", "T1021.006", - "T1059", - "T1021" + "T1021", + "T1059" ], "title": "Remote PowerShell Session (PS Classic)" }, @@ -1926,8 +1926,8 @@ "T1059.001", "TA0003", "T1136.001", - "T1136", - "T1059" + "T1059", + "T1136" ], "title": "PowerShell Create Local User" }, @@ -4374,8 +4374,8 @@ "T1059.001", "TA0008", "T1021.006", - "T1021", - "T1059" + "T1059", + "T1021" ], "title": "Remote PowerShell Session (PS Module)" }, @@ -4965,8 +4965,8 @@ "T1552.001", "T1555", "T1555.003", - "T1548", - "T1552" + "T1552", + "T1548" ], "title": "HackTool - WinPwn Execution" }, @@ -4994,8 +4994,8 @@ "T1615", "T1569.002", "T1574.005", - "T1574", - "T1569" + "T1569", + "T1574" ], "title": "HackTool - SharpUp PrivEsc Tool Execution" }, @@ -5534,9 +5534,9 @@ "T1218.007", "TA0002", "T1059.001", + "T1059", "T1027", - "T1218", - "T1059" + "T1218" ], "title": "Obfuscated PowerShell MSI Install via WindowsInstaller COM" }, @@ -7537,8 +7537,8 @@ "TA0003", "T1053.005", "T1059.001", - "T1053", - "T1059" + "T1059", + "T1053" ], "title": "Scheduled Task Executing Encoded Payload from Registry" }, @@ -10931,8 +10931,8 @@ "TA0005", "T1548.002", "T1218.003", - "T1548", - "T1218" + "T1218", + "T1548" ], "title": "Bypass UAC via CMSTP" }, @@ -11155,8 +11155,8 @@ "T1218.010", "TA0002", "TA0005", - "T1204", - "T1218" + "T1218", + "T1204" ], "title": "Suspicious WMIC Execution Via Office Process" }, @@ -11348,8 +11348,8 @@ "TA0011", "T1071.004", "T1132.001", - "T1048", "T1132", + "T1048", "T1071" ], "title": "DNS Exfiltration and Tunneling Tools Execution" @@ -11714,8 +11714,8 @@ "car.2013-08-001", "T1053.005", "T1059.001", - "T1059", - "T1053" + "T1053", + "T1059" ], "title": "HackTool - Default PowerSploit/Empire Scheduled Task Creation" }, @@ -11989,8 +11989,8 @@ "TA0002", "T1059.001", "T1562.001", - "T1562", - "T1059" + "T1059", + "T1562" ], "title": "Obfuscated PowerShell OneLiner Execution" }, @@ -12384,8 +12384,8 @@ "TA0005", "T1059.001", "T1564.003", - "T1059", - "T1564" + "T1564", + "T1059" ], "title": "HackTool - Covenant PowerShell Launcher" }, @@ -13522,8 +13522,8 @@ "T1087.002", "T1482", "T1069.002", - "T1087", - "T1069" + "T1069", + "T1087" ], "title": "Renamed AdFind Execution" }, @@ -13820,8 +13820,8 @@ "T1570", "TA0002", "T1569.002", - "T1021", - "T1569" + "T1569", + "T1021" ], "title": "Rundll32 Execution Without Parameters" }, @@ -13865,8 +13865,8 @@ "T1587.001", "TA0002", "T1569.002", - "T1569", - "T1587" + "T1587", + "T1569" ], "title": "PUA - CsExec Execution" }, @@ -16017,8 +16017,8 @@ "T1203", "T1059.003", "attack.g0032", - "T1566", - "T1059" + "T1059", + "T1566" ], "title": "Suspicious HWP Sub Processes" }, @@ -16889,8 +16889,8 @@ "T1087.002", "T1069.002", "T1482", - "T1069", - "T1087" + "T1087", + "T1069" ], "title": "Active Directory Database Snapshot Via ADExplorer" }, @@ -20155,8 +20155,8 @@ "TA0008", "T1021.002", "T1218.011", - "T1021", - "T1218" + "T1218", + "T1021" ], "title": "Rundll32 UNC Path Execution" }, @@ -21183,9 +21183,9 @@ "TA0005", "T1218.014", "T1036.002", - "T1204", "T1218", - "T1036" + "T1036", + "T1204" ], "title": "MMC Executing Files with Reversed Extensions Using RTLO Abuse" }, @@ -21314,8 +21314,8 @@ "TA0005", "T1219.002", "T1036.003", - "T1036", - "T1219" + "T1219", + "T1036" ], "title": "Remote Access Tool - Renamed MeshAgent Execution - Windows" }, @@ -21657,8 +21657,8 @@ "T1047", "T1204.002", "T1218.010", - "T1218", - "T1204" + "T1204", + "T1218" ], "title": "Suspicious Microsoft Office Child Process" }, @@ -21740,12 +21740,12 @@ "T1547.002", "T1557", "T1082", - "T1547", + "T1574", "T1546", - "T1556", + "T1547", "T1505", - "T1564", - "T1574" + "T1556", + "T1564" ], "title": "Potential Suspicious Activity Using SeCEdit" }, @@ -22556,8 +22556,8 @@ "TA0008", "T1059.001", "T1021.006", - "T1059", - "T1021" + "T1021", + "T1059" ], "title": "Remote PowerShell Session Host Process (WinRM)" }, @@ -23233,8 +23233,8 @@ "T1059.003", "TA0005", "T1027.010", - "T1059", - "T1027" + "T1027", + "T1059" ], "title": "Suspicious Usage of For Loop with Recursive Directory Search in CMD" }, @@ -24293,6 +24293,31 @@ ], "title": "Process Memory Dump Via Comsvcs.DLL" }, + { + "category": "process_creation", + "channel": [ + "sec" + ], + "description": "Detects suspicious child process creation by the Notepad++ updater process (gup.exe).\nThis could indicate potential exploitation of the updater component to deliver unwanted malware.\n", + "event_ids": [ + "4688" + ], + "id": "3f3ab8ff-23de-2bef-b606-fd2585bdc5e2", + "level": "high", + "service": "", + "subcategory_guids": [ + "0CCE922B-69AE-11D9-BED3-505054503030" + ], + "tags": [ + "TA0009", + "TA0006", + "T1195.002", + "TA0001", + "T1557", + "T1195" + ], + "title": "Suspicious Child Process of Notepad++ Updater - GUP.Exe" + }, { "category": "process_creation", "channel": [ @@ -24539,8 +24564,8 @@ "TA0003", "T1053.005", "T1059.001", - "T1059", - "T1053" + "T1053", + "T1059" ], "title": "Scheduled Task Executing Payload from Registry" }, @@ -24919,8 +24944,8 @@ "T1133", "T1136.001", "T1021.001", - "T1136", - "T1021" + "T1021", + "T1136" ], "title": "User Added to Remote Desktop Users Group" }, @@ -25555,8 +25580,8 @@ "T1564.004", "T1552.001", "T1105", - "T1564", - "T1552" + "T1552", + "T1564" ], "title": "Insensitive Subfolder Search Via Findstr.EXE" }, @@ -27527,8 +27552,8 @@ "T1070.001", "T1562.002", "car.2016-04-002", - "T1562", - "T1070" + "T1070", + "T1562" ], "title": "Suspicious Eventlog Clearing or Configuration Change Activity" }, @@ -28078,8 +28103,8 @@ "T1558.003", "TA0008", "T1550.003", - "T1558", - "T1550" + "T1550", + "T1558" ], "title": "HackTool - Rubeus Execution" }, @@ -28541,8 +28566,8 @@ "TA0003", "T1036.005", "T1053.005", - "T1053", - "T1036" + "T1036", + "T1053" ], "title": "Suspicious Scheduled Task Creation via Masqueraded XML File" }, @@ -29198,8 +29223,8 @@ "TA0004", "T1036.003", "T1053.005", - "T1036", - "T1053" + "T1053", + "T1036" ], "title": "Renamed Schtasks Execution" }, @@ -32826,9 +32851,9 @@ "T1027.010", "T1547.001", "detection.threat-hunting", + "T1547", "T1059", - "T1027", - "T1547" + "T1027" ], "title": "Registry Set With Crypto-Classes From The \"Cryptography\" PowerShell Namespace" }, @@ -33354,8 +33379,8 @@ "TA0004", "T1548.002", "T1546.001", - "T1548", - "T1546" + "T1546", + "T1548" ], "title": "Shell Open Registry Keys Manipulation" }, @@ -34380,8 +34405,8 @@ "T1204.004", "TA0005", "T1027.010", - "T1027", - "T1204" + "T1204", + "T1027" ], "title": "Suspicious Space Characters in RunMRU Registry Path - ClickFix" }, @@ -36254,8 +36279,8 @@ "T1204.004", "TA0005", "T1027.010", - "T1027", - "T1204" + "T1204", + "T1027" ], "title": "Suspicious Space Characters in TypedPaths Registry Path - FileFix" }, @@ -37414,9 +37439,9 @@ "T1021.002", "T1543.003", "T1569.002", - "T1021", + "T1569", "T1543", - "T1569" + "T1021" ], "title": "Potential CobaltStrike Service Installations - Registry" }, @@ -38037,8 +38062,8 @@ "TA0003", "T1547.001", "T1546.009", - "T1546", - "T1547" + "T1547", + "T1546" ], "title": "Session Manager Autorun Keys Modification" }, @@ -38919,8 +38944,8 @@ "car.2016-04-002", "detection.emerging-threats", "T1070", - "T1003", - "T1218" + "T1218", + "T1003" ], "title": "NotPetya Ransomware Activity" }, @@ -39243,9 +39268,9 @@ "TA0011", "T1071.004", "detection.emerging-threats", - "T1053", "T1543", - "T1071" + "T1071", + "T1053" ], "title": "OilRig APT Schedule Task Persistence - Security" }, @@ -39311,8 +39336,8 @@ "TA0011", "T1071.004", "detection.emerging-threats", - "T1071", "T1053", + "T1071", "T1543" ], "title": "OilRig APT Activity" @@ -39343,9 +39368,9 @@ "TA0011", "T1071.004", "detection.emerging-threats", + "T1053", "T1543", - "T1071", - "T1053" + "T1071" ], "title": "OilRig APT Schedule Task Persistence - System" }, @@ -39471,8 +39496,8 @@ "T1218.011", "car.2013-10-002", "detection.emerging-threats", - "T1059", - "T1218" + "T1218", + "T1059" ], "title": "Sofacy Trojan Loader Activity" }, @@ -39985,8 +40010,8 @@ "TA0005", "T1036.005", "detection.emerging-threats", - "T1059", - "T1036" + "T1036", + "T1059" ], "title": "Greenbug Espionage Group Indicators" }, @@ -40385,8 +40410,8 @@ "T1053.005", "T1059.006", "detection.emerging-threats", - "T1053", - "T1059" + "T1059", + "T1053" ], "title": "Serpent Backdoor Payload Execution Via Scheduled Task" }, @@ -40532,8 +40557,8 @@ "T1053.005", "T1027", "detection.emerging-threats", - "T1059", - "T1053" + "T1053", + "T1059" ], "title": "Turla Group Commands May 2020" }, @@ -40589,8 +40614,8 @@ "attack.s0412", "attack.g0001", "detection.emerging-threats", - "T1218", - "T1059" + "T1059", + "T1218" ], "title": "ZxShell Malware" }, @@ -41937,8 +41962,8 @@ "T1003.001", "T1560.001", "detection.emerging-threats", - "T1003", - "T1560" + "T1560", + "T1003" ], "title": "APT31 Judgement Panda Activity" }, @@ -41970,8 +41995,8 @@ "T1059.001", "detection.emerging-threats", "T1053", - "T1059", - "T1036" + "T1036", + "T1059" ], "title": "Operation Wocao Activity" }, @@ -42003,8 +42028,8 @@ "T1059.001", "detection.emerging-threats", "T1036", - "T1053", - "T1059" + "T1059", + "T1053" ], "title": "Operation Wocao Activity - Security" }, @@ -45521,8 +45546,8 @@ "TA0002", "T1543.003", "T1569.002", - "T1569", - "T1543" + "T1543", + "T1569" ], "title": "Remote Access Tool Services Have Been Installed - Security" }, @@ -45690,9 +45715,9 @@ "T1021.002", "T1543.003", "T1569.002", - "T1021", + "T1543", "T1569", - "T1543" + "T1021" ], "title": "CobaltStrike Service Installations - Security" }, @@ -46271,8 +46296,8 @@ "T1090.002", "T1021.001", "car.2013-07-002", - "T1021", - "T1090" + "T1090", + "T1021" ], "title": "RDP over Reverse SSH Tunnel WFP" }, @@ -46349,8 +46374,8 @@ "T1003.006", "T1569.002", "attack.s0005", - "T1569", - "T1003" + "T1003", + "T1569" ], "title": "Credential Dumping Tools Service Execution - Security" }, @@ -47375,9 +47400,9 @@ "T1485", "T1553.002", "attack.s0195", - "T1027", + "T1553", "T1070", - "T1553" + "T1027" ], "title": "Potential Secure Deletion with SDelete" }, @@ -48355,8 +48380,8 @@ "T1218.010", "TA0002", "TA0005", - "T1218", - "T1204" + "T1204", + "T1218" ], "title": "Excel Proxy Executing Regsvr32 With Payload Alternate" }, @@ -48515,8 +48540,8 @@ "T1218.010", "TA0002", "TA0005", - "T1204", - "T1218" + "T1218", + "T1204" ], "title": "Office Applications Spawning Wmi Cli Alternate" }, @@ -48699,8 +48724,8 @@ "T1218.010", "TA0002", "TA0005", - "T1218", - "T1204" + "T1204", + "T1218" ], "title": "New Lolbin Process by Office Applications" }, @@ -51129,8 +51154,8 @@ "T1003.006", "T1569.002", "attack.s0005", - "T1003", - "T1569" + "T1569", + "T1003" ], "title": "Credential Dumping Tools Service Execution - System" }, @@ -51194,9 +51219,9 @@ "T1021.002", "T1543.003", "T1569.002", - "T1569", "T1543", - "T1021" + "T1021", + "T1569" ], "title": "CobaltStrike Service Installations - System" }, @@ -51281,8 +51306,8 @@ "TA0004", "T1543.003", "T1569.002", - "T1543", - "T1569" + "T1569", + "T1543" ], "title": "ProcessHacker Privilege Elevation" }, @@ -51365,8 +51390,8 @@ "TA0002", "T1021.002", "T1569.002", - "T1569", - "T1021" + "T1021", + "T1569" ], "title": "smbexec.py Service Installation" }, @@ -52171,8 +52196,8 @@ "car.2013-09-005", "T1543.003", "T1569.002", - "T1543", - "T1569" + "T1569", + "T1543" ], "title": "Malicious Service Installations" }, @@ -52283,8 +52308,8 @@ "T1570", "TA0002", "T1569.002", - "T1569", - "T1021" + "T1021", + "T1569" ], "title": "Metasploit Or Impacket Service Installation Via SMB PsExec" }, @@ -53002,8 +53027,8 @@ "TA0008", "T1563.002", "T1021.001", - "T1021", - "T1563" + "T1563", + "T1021" ], "title": "Possible RDP Hijacking" }, @@ -54560,10 +54585,10 @@ "T1570", "T1021.002", "T1569.002", - "T1543", - "T1136", "T1569", - "T1021" + "T1136", + "T1021", + "T1543" ], "title": "PSExec Lateral Movement" },