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SigmaHQ Detections

@sigmaHQ
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6,797 detections

Detects potential WerFault "ReflectDebugger" registry value abuse for persistence.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0012
Detects the execution of PowerShell commands from a headless ConHost process. The '--headless' flag is used to hide the console window from the user, which can be leveraged by adversaries for stealthy execution.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0012
Detects the execution of Sysinternals ADExplorer with the "-snapshot" flag in order to save a local copy of the active directory database. This can be used by attackers to extract data for Bloodhound, usernames for password spraying or use the meta data for social engineering. The snapshot doesn't contain password hashes but there have been cases, where administrators put passwords in the comment field.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
001
Looks for potential enumeration of AWS buckets via ListBuckets.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
001
Detects network connections to BTunnels domains initiated by a process on the system.
Attackers can abuse that feature to establish a reverse shell or persistence on a machine.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
001
Detects changes to the Windows EventLog channel permission values. It focuses on changes to the Security Descriptor Definition Language (SDDL) string, as modifications to these values can restrict access to specific users or groups, potentially aiding in defense evasion by controlling who can view or modify a event log channel. Upon execution, the user shouldn't be able to access the event log channel via the event viewer or via utilities such as "Get-EventLog" or "wevtutil".
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Detects the dual use tool ADExplorer writing a complete AD snapshot into a .dat file. This can be used by attackers to extract data for Bloodhound, usernames for password spraying or use the meta data for social engineering. The snapshot doesn't contain password hashes but there have been cases, where administrators put passwords in the comment field.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Detects the execution of Sysinternals ADExplorer with the "-snapshot" flag in order to save a local copy of the active directory database to a suspicious directory. This can be used by attackers to extract data for Bloodhound, usernames for password spraying or use the meta data for social engineering. The snapshot doesn't contain password hashes but there have been cases, where administrators put passwords in the comment field.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Indicates suspicious rules such as an inbox rule that forwards a copy of all emails to an external address
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
Detects DNS requests to Cloudflared tunnels domains.
Attackers can abuse that feature to establish a reverse shell or persistence on a machine.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
000
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