Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

7,128 detections

Detects System Information Discovery commands
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects relevant ClamAV messages
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious session with two users present
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious shell commands used in various Equation Group scripts and tools
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects specific commands commonly used to remove or empty the syslog
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious shell commands used in various exploit codes (see references)
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious shell commands or program code that may be executed or used in command line to establish a reverse shell
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious command lines that look as if they would create symbolic links to /etc/passwd
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious SSH / SSHD error messages that indicate a fatal or suspicious error that could be caused by exploiting attempts
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious DNS error messages that indicate a fatal or suspicious error that could be caused by exploiting attempts
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects suspicious VSFTPD error messages that indicate a fatal or suspicious error that could be caused by exploiting attempts
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects the use of wget to download content in a temporary directory such as "/tmp" or "/var/tmp"
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects execution of the bash shell with the interactive flag "-i".
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects attempts to collect data stored in the clipboard from users with the usage of xclip tool. Xclip has to be installed.
Highly recommended using rule on servers, due to high usage of clipboard utilities on user workstations.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects command line parameters or strings often used by crypto miners
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects a curl process start on linux, which indicates a file download from a remote location or a simple web request to a remote server
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects potential overwriting and deletion of a file using DD.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects the use of grep to discover specific files created by the GobRAT malware
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Detects usage of nohup which could be leveraged by an attacker to keep a process running or break out from restricted environments
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Rule to detect the use of the SCX RunAsProvider ExecuteScript to execute any UNIX/Linux script using the /bin/sh shell.
Script being executed gets created as a temp file in /tmp folder with a scx* prefix.
Then it is invoked from the following directory /etc/opt/microsoft/scx/conf/tmpdir/.
The file in that directory has the same prefix scx*. SCXcore, started as the Microsoft Operations Manager UNIX/Linux Agent, is now used in a host of products including
Microsoft Operations Manager, Microsoft Azure, and Microsoft Operations Management Suite.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
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Rule to detect the use of the SCX RunAsProvider Invoke_ExecuteShellCommand to execute any UNIX/Linux command using the /bin/sh shell.
SCXcore, started as the Microsoft Operations Manager UNIX/Linux Agent, is now used in a host of products including
Microsoft Operations Manager, Microsoft Azure, and Microsoft Operations Management Suite.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 years ago
000
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