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SigmaHQ Detections

@sigmaHQ
12 followers122,429 downloads2,470 copies16 likes159,538 views

6,797 detections

Detects the creation or modification of a vscode related powershell profile which could indicate suspicious activity as the profile can be used as a mean of persistence
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects default PsExec service filename which indicates PsExec service installation and execution
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects creation of ".vhd"/".vhdx" files by browser processes.
Malware can use mountable Virtual Hard Disk ".vhd" files to encapsulate payloads and evade security controls.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects a threat actor creating a file named `wbemcomn.dll` in the `C:\Windows\System32\wbem\` directory over the network and loading it for a WMI DLL Hijack scenario.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects file renames where the target filename uses an uncommon double extension. Could indicate potential ransomware activity renaming files and adding a custom extension to the encrypted files, such as ".jpg.crypted", ".docx.locky", etc.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
Detects the load of dbghelp/dbgcore DLL (used to make memory dumps) by suspicious processes.
Tools like ProcessHacker and some attacker tradecract use MiniDumpWriteDump API found in dbghelp.dll or dbgcore.dll.
As an example, SilentTrynity C2 Framework has a module that leverages this API to dump the contents of Lsass.exe and transfer it over the network back to the attacker's machine.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects SILENTTRINITY stager dll loading activity
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects potential DLL hijack of "iertutil.dll" found in the DCOM InternetExplorer.Application Class
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Loading unsigned image (DLL, EXE) into LSASS process
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects any assembly DLL being loaded by an Office Product
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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