From 54dbeb729fd9955f00732fbb0d989fbb63f5dd4d Mon Sep 17 00:00:00 2001 From: YamatoSecurity Date: Sat, 25 Apr 2026 20:31:48 +0000 Subject: [PATCH] Sigma Rule Update (2026-04-25 20:31:47) --- config/security_rules.json | 276 ++++++++++++++++++------------------- 1 file changed, 138 insertions(+), 138 deletions(-) diff --git a/config/security_rules.json b/config/security_rules.json index 1c07309c..ffbd2373 100644 --- a/config/security_rules.json +++ b/config/security_rules.json @@ -210,8 +210,8 @@ "car.2013-09-005", "T1543.003", "T1569.002", - "T1569", - "T1543" + "T1543", + "T1569" ], "title": "Malicious Service Installations" }, @@ -987,9 +987,9 @@ "TA0005", "T1218.014", "T1036.002", - "T1218", "T1036", - "T1204" + "T1204", + "T1218" ], "title": "MMC Executing Files with Reversed Extensions Using RTLO Abuse" }, @@ -1835,8 +1835,8 @@ "T1218.010", "TA0002", "TA0005", - "T1204", - "T1218" + "T1218", + "T1204" ], "title": "Suspicious WMIC Execution Via Office Process" }, @@ -3848,28 +3848,6 @@ ], "title": "Suspicious FromBase64String Usage On Gzip Archive - Process Creation" }, - { - "category": "process_creation", - "channel": [ - "sec" - ], - "description": "Detects the usage of the \"reg.exe\" utility to disable PPL protection on the LSA process", - "event_ids": [ - "4688" - ], - "id": "a6a22651-ffaa-7713-8313-46ce8a85ad64", - "level": "high", - "service": "", - "subcategory_guids": [ - "0CCE922B-69AE-11D9-BED3-505054503030" - ], - "tags": [ - "TA0005", - "T1562.010", - "T1562" - ], - "title": "LSA PPL Protection Disabled Via Reg.EXE" - }, { "category": "process_creation", "channel": [ @@ -4423,8 +4401,8 @@ "TA0003", "T1036.005", "T1053.005", - "T1036", - "T1053" + "T1053", + "T1036" ], "title": "Suspicious Scheduled Task Creation via Masqueraded XML File" }, @@ -5522,8 +5500,8 @@ "T1563.002", "T1021.001", "car.2013-07-002", - "T1563", - "T1021" + "T1021", + "T1563" ], "title": "Suspicious RDP Redirect Using TSCON" }, @@ -6602,6 +6580,28 @@ ], "title": "C# IL Code Compilation Via Ilasm.EXE" }, + { + "category": "process_creation", + "channel": [ + "sec" + ], + "description": "Detects modification of LSA PPL protection settings via CommandLine.\nIt may indicate an attempt to disable protection and enable credential dumping tools to access LSASS process memory.\n", + "event_ids": [ + "4688" + ], + "id": "a6a22651-ffaa-7713-8313-46ce8a85ad64", + "level": "medium", + "service": "", + "subcategory_guids": [ + "0CCE922B-69AE-11D9-BED3-505054503030" + ], + "tags": [ + "TA0005", + "T1562.010", + "T1562" + ], + "title": "LSA PPL Protection Setting Modification via CommandLine" + }, { "category": "process_creation", "channel": [ @@ -6941,8 +6941,8 @@ "T1204.004", "TA0005", "T1027.010", - "T1204", - "T1027" + "T1027", + "T1204" ], "title": "Suspicious Explorer Process with Whitespace Padding - ClickFix/FileFix" }, @@ -7485,8 +7485,8 @@ "TA0004", "T1543.003", "T1562.001", - "T1543", - "T1562" + "T1562", + "T1543" ], "title": "Devcon Execution Disabling VMware VMCI Device" }, @@ -7562,8 +7562,8 @@ "car.2013-08-001", "T1053.005", "T1059.001", - "T1053", - "T1059" + "T1059", + "T1053" ], "title": "HackTool - Default PowerSploit/Empire Scheduled Task Creation" }, @@ -8017,8 +8017,8 @@ "T1558.003", "TA0008", "T1550.003", - "T1558", - "T1550" + "T1550", + "T1558" ], "title": "HackTool - KrbRelayUp Execution" }, @@ -8629,9 +8629,9 @@ "TA0005", "T1218.005", "T1027.004", + "T1027", "T1059", - "T1218", - "T1027" + "T1218" ], "title": "Csc.EXE Execution Form Potentially Suspicious Parent" }, @@ -8772,9 +8772,9 @@ "T1218.007", "TA0002", "T1059.001", + "T1027", "T1218", - "T1059", - "T1027" + "T1059" ], "title": "Obfuscated PowerShell MSI Install via WindowsInstaller COM" }, @@ -9087,8 +9087,8 @@ "T1087.002", "T1482", "T1069.002", - "T1069", - "T1087" + "T1087", + "T1069" ], "title": "Renamed AdFind Execution" }, @@ -10166,8 +10166,8 @@ "TA0003", "T1053.005", "T1059.001", - "T1059", - "T1053" + "T1053", + "T1059" ], "title": "Suspicious Schtasks Execution AppData Folder" }, @@ -10518,8 +10518,8 @@ "T1071.004", "T1132.001", "T1048", - "T1132", - "T1071" + "T1071", + "T1132" ], "title": "DNS Exfiltration and Tunneling Tools Execution" }, @@ -12381,8 +12381,8 @@ "T1587.001", "TA0002", "T1569.002", - "T1587", - "T1569" + "T1569", + "T1587" ], "title": "PUA - CsExec Execution" }, @@ -13535,8 +13535,8 @@ "T1548.002", "T1546.001", "T1112", - "T1546", - "T1548" + "T1548", + "T1546" ], "title": "Registry Modification of MS-settings Protocol Handler" }, @@ -15140,8 +15140,8 @@ "TA0004", "T1036.003", "T1053.005", - "T1036", - "T1053" + "T1053", + "T1036" ], "title": "Renamed Schtasks Execution" }, @@ -15907,8 +15907,8 @@ "TA0002", "T1059.001", "T1562.001", - "T1059", - "T1562" + "T1562", + "T1059" ], "title": "Obfuscated PowerShell OneLiner Execution" }, @@ -16400,8 +16400,8 @@ "T1570", "TA0002", "T1569.002", - "T1021", - "T1569" + "T1569", + "T1021" ], "title": "Rundll32 Execution Without Parameters" }, @@ -16856,8 +16856,8 @@ "TA0002", "T1059.001", "T1069", - "T1087", - "T1059" + "T1059", + "T1087" ], "title": "HackTool - Bloodhound/Sharphound Execution" }, @@ -17570,8 +17570,8 @@ "T1047", "T1204.002", "T1218.010", - "T1204", - "T1218" + "T1218", + "T1204" ], "title": "Suspicious Microsoft Office Child Process" }, @@ -18239,8 +18239,8 @@ "T1482", "T1069.002", "stp.1u", - "T1087", - "T1069" + "T1069", + "T1087" ], "title": "PUA - AdFind Suspicious Execution" }, @@ -18964,8 +18964,8 @@ "T1021.004", "TA0011", "T1219", - "T1059", - "T1021" + "T1021", + "T1059" ], "title": "OpenEDR Spawning Command Shell" }, @@ -19387,8 +19387,8 @@ "TA0008", "T1059.001", "T1021.006", - "T1021", - "T1059" + "T1059", + "T1021" ], "title": "Remote PowerShell Session Host Process (WinRM)" }, @@ -19616,10 +19616,10 @@ "T1547.002", "T1557", "T1082", - "T1547", "T1564", - "T1574", + "T1547", "T1556", + "T1574", "T1546", "T1505" ], @@ -20429,8 +20429,8 @@ "T1059.001", "TA0005", "T1027.005", - "T1059", - "T1027" + "T1027", + "T1059" ], "title": "HackTool - CrackMapExec PowerShell Obfuscation" }, @@ -23274,8 +23274,8 @@ "TA0005", "T1059.001", "T1564.003", - "T1059", - "T1564" + "T1564", + "T1059" ], "title": "HackTool - Covenant PowerShell Launcher" }, @@ -24423,8 +24423,8 @@ "T1070.001", "T1562.002", "car.2016-04-002", - "T1070", - "T1562" + "T1562", + "T1070" ], "title": "Suspicious Eventlog Clearing or Configuration Change Activity" }, @@ -24629,8 +24629,8 @@ "T1203", "T1059.003", "attack.g0032", - "T1566", - "T1059" + "T1059", + "T1566" ], "title": "Suspicious HWP Sub Processes" }, @@ -26221,8 +26221,8 @@ "T1053.005", "T1027", "detection.emerging-threats", - "T1053", - "T1059" + "T1059", + "T1053" ], "title": "Turla Group Commands May 2020" }, @@ -27544,8 +27544,8 @@ "T1059.005", "T1105", "detection.emerging-threats", - "T1059", - "T1195" + "T1195", + "T1059" ], "title": "Axios NPM Compromise Indicators - Windows" }, @@ -28516,9 +28516,9 @@ "T1053.005", "T1059.001", "detection.emerging-threats", - "T1059", "T1036", - "T1053" + "T1053", + "T1059" ], "title": "Operation Wocao Activity" }, @@ -28550,8 +28550,8 @@ "T1059.001", "detection.emerging-threats", "T1059", - "T1053", - "T1036" + "T1036", + "T1053" ], "title": "Operation Wocao Activity - Security" }, @@ -28661,8 +28661,8 @@ "T1543.003", "T1569.002", "detection.emerging-threats", - "T1569", - "T1543" + "T1543", + "T1569" ], "title": "CosmicDuke Service Installation" }, @@ -28742,8 +28742,8 @@ "T1003.001", "car.2016-04-002", "detection.emerging-threats", - "T1070", "T1218", + "T1070", "T1003" ], "title": "NotPetya Ransomware Activity" @@ -29795,8 +29795,8 @@ "TA0005", "T1036.005", "detection.emerging-threats", - "T1059", - "T1036" + "T1036", + "T1059" ], "title": "Greenbug Espionage Group Indicators" }, @@ -30125,9 +30125,9 @@ "TA0011", "T1071.004", "detection.emerging-threats", - "T1071", "T1053", - "T1543" + "T1543", + "T1071" ], "title": "OilRig APT Activity" }, @@ -30160,8 +30160,8 @@ "TA0011", "T1071.004", "detection.emerging-threats", - "T1543", "T1071", + "T1543", "T1053" ], "title": "OilRig APT Schedule Task Persistence - Security" @@ -30226,9 +30226,9 @@ "TA0011", "T1071.004", "detection.emerging-threats", + "T1053", "T1543", - "T1071", - "T1053" + "T1071" ], "title": "OilRig APT Schedule Task Persistence - System" }, @@ -34208,9 +34208,9 @@ "T1021.002", "T1543.003", "T1569.002", + "T1543", "T1569", - "T1021", - "T1543" + "T1021" ], "title": "Potential CobaltStrike Service Installations - Registry" }, @@ -38141,8 +38141,8 @@ "T1552.001", "T1555", "T1555.003", - "T1548", - "T1552" + "T1552", + "T1548" ], "title": "HackTool - WinPwn Execution - ScriptBlock" }, @@ -39774,8 +39774,8 @@ "TA0005", "T1059.001", "T1036.003", - "T1036", - "T1059" + "T1059", + "T1036" ], "title": "Renamed Powershell Under Powershell Channel" }, @@ -39795,8 +39795,8 @@ "T1059.001", "TA0008", "T1021.003", - "T1059", - "T1021" + "T1021", + "T1059" ], "title": "Suspicious Non PowerShell WSMAN COM Provider" }, @@ -42624,8 +42624,8 @@ "TA0004", "T1543.003", "T1569.002", - "T1569", - "T1543" + "T1543", + "T1569" ], "title": "ProcessHacker Privilege Elevation" }, @@ -42857,9 +42857,9 @@ "T1021.002", "T1543.003", "T1569.002", - "T1569", "T1021", - "T1543" + "T1543", + "T1569" ], "title": "CobaltStrike Service Installations - System" }, @@ -42906,8 +42906,8 @@ "T1003.006", "T1569.002", "attack.s0005", - "T1569", - "T1003" + "T1003", + "T1569" ], "title": "Credential Dumping Tools Service Execution - System" }, @@ -43038,8 +43038,8 @@ "TA0002", "T1021.002", "T1569.002", - "T1569", - "T1021" + "T1021", + "T1569" ], "title": "smbexec.py Service Installation" }, @@ -43161,8 +43161,8 @@ "TA0002", "T1543.003", "T1569.002", - "T1569", - "T1543" + "T1543", + "T1569" ], "title": "Remote Access Tool Services Have Been Installed - System" }, @@ -43911,8 +43911,8 @@ "TA0002", "T1204.002", "T1553.005", - "T1553", - "T1204" + "T1204", + "T1553" ], "title": "Windows AppX Deployment Full Trust Package Installation" }, @@ -43934,8 +43934,8 @@ "TA0002", "T1204.002", "T1553.005", - "T1204", - "T1553" + "T1553", + "T1204" ], "title": "Windows AppX Deployment Unsigned Package Installation" }, @@ -44909,8 +44909,8 @@ "T1559.001", "TA0005", "T1218.010", - "T1218", - "T1559" + "T1559", + "T1218" ], "title": "Network Connection Initiated By Regsvr32.EXE" }, @@ -45093,8 +45093,8 @@ "TA0001", "TA0043", "detection.threat-hunting", - "T1598", - "T1566" + "T1566", + "T1598" ], "title": "HTML File Opened From Download Folder" }, @@ -45807,9 +45807,9 @@ "T1021.002", "attack.s0039", "detection.threat-hunting", - "T1069", + "T1087", "T1021", - "T1087" + "T1069" ], "title": "Net.EXE Execution" }, @@ -46383,8 +46383,8 @@ "T1027.010", "T1547.001", "detection.threat-hunting", - "T1547", "T1059", + "T1547", "T1027" ], "title": "Registry Set With Crypto-Classes From The \"Cryptography\" PowerShell Namespace" @@ -46585,8 +46585,8 @@ "TA0009", "T1114.003", "detection.threat-hunting", - "T1564", - "T1114" + "T1114", + "T1564" ], "title": "Inbox Rules Creation Or Update Activity Via ExchangePowerShell Cmdlet" }, @@ -46612,8 +46612,8 @@ "TA0010", "T1020", "detection.threat-hunting", - "T1114", - "T1564" + "T1564", + "T1114" ], "title": "Mail Forwarding/Redirecting Activity Via ExchangePowerShell Cmdlet" }, @@ -49848,8 +49848,8 @@ "T1485", "T1553.002", "attack.s0195", - "T1553", "T1027", + "T1553", "T1070" ], "title": "Potential Secure Deletion with SDelete" @@ -50762,8 +50762,8 @@ "T1218.010", "TA0002", "TA0005", - "T1218", - "T1204" + "T1204", + "T1218" ], "title": "New Lolbin Process by Office Applications" }, @@ -51161,8 +51161,8 @@ "T1218.010", "TA0002", "TA0005", - "T1204", - "T1218" + "T1218", + "T1204" ], "title": "Office Applications Spawning Wmi Cli Alternate" }, @@ -55277,8 +55277,8 @@ "T1569.002", "T1136", "T1569", - "T1543", - "T1021" + "T1021", + "T1543" ], "title": "PSExec Lateral Movement" },