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SigmaHQ Detections

@sigmaHQ
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6,797 detections

Detects the execution of SysInternals DebugView when its executable name has been renamed from the original 'Dbgview.exe'. This can indicate an attempt to evade detection or obscure the use of the tool by an adversary.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
Detects the execution of suspicious files that use a double extension in their name, specifically when these files appear in the ParentImage or ParentCommandLine. This technique is often used by adversaries to masquerade malicious executables as benign document or script files, tricking users into executing them.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
Detects the execution of Living Off The Land Binaries (LOLBINs) from an unusual or abnormal drive, such as a mounted ISO. This behavior can indicate an attempt by an adversary to evade detection by executing legitimate system tools from non-standard locations, often associated with initial access or defense evasion techniques.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
Detects potential credential dumping via the Windows Error Reporting (WER) LSASS Shtinkering technique. This technique abuses WerFault.exe to dump the LSASS process memory. The rule specifically looks for WerFault.exe being executed with command-line arguments indicating a dump of a target process (-p) that is not the source process (-ip), and where the target process is likely LSASS.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
3020
Detects an attempt to execute code or create a service on a remote host using `winrm.vbs` via `cscript.exe`. This technique leverages Windows Remote Management (WinRM) to interact with WMI for remote execution, often for lateral movement or persistence.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
This rule detects the execution of 'wmic.exe' with the 'Product' keyword in the command line. This specific command is often used by adversaries to enumerate installed software, including security products like firewalls and antivirus, on a Windows system. This activity is typically part of the discovery phase of an attack, where an attacker gathers information about the environment to plan subsequent actions.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
Detects the setting of the "DumpType" registry value to "2" (Full Dump) within the Windows Error Reporting LocalDumps configuration. This specific setting is required by techniques like LSASS Shtinkering to facilitate dumping of the LSASS process memory, which often contains sensitive credential material.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
1020
Detects when an attacker registers a new SIP provider for persistence and defense evasion by monitoring modifications to the 'mpnotify' registry key under 'HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\'. This registry key is associated with Winlogon helper DLLs, which can be abused to execute malicious code during user logon.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
This rule detects Sysmon Event ID 27, which signifies a "FileBlockExecutable" event. This event is generated when Sysmon's configured block policy prevents an executable file from being created or modified. This indicates an attempt to introduce or alter an executable that violates the defined security policy.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0020
This rule detects the invocation of the 'Archer' malware using 'rundll32.exe'. Specifically, it looks for command-line arguments containing both 'rundll32.exe' and 'InstallArcherSvc'. This pattern indicates an attempt to execute a malicious DLL function named 'InstallArcherSvc' via the legitimate Windows utility 'rundll32.exe', which is a common technique for defense evasion and execution.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
0019
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