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monitor execveat syscall which can be use for file less malwares #162

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monitor execveat syscall which can be use for file less malwares #162

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cd35bee
monitor execveat
vahidmalekk Feb 2, 2025
01832c6
fixed the mistakes
vahidmalekk Mar 9, 2025
8a16624
monitor apt config files
vahidmalekk Apr 15, 2025
a3075ca
monitor at jobs
vahidmalekk Apr 15, 2025
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8 changes: 8 additions & 0 deletions audit.rules
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Original file line number Diff line number Diff line change
Expand Up @@ -177,6 +177,7 @@
-w /etc/cron.weekly/ -p wa -k cron
-w /etc/crontab -p wa -k cron
-w /var/spool/cron/ -p wa -k cron
-w /var/spool/cron/atjobs/ -p wa -k atjob

## User, group, password databases
-w /etc/group -p wa -k etcgroup
Expand Down Expand Up @@ -593,6 +594,9 @@
-w /usr/bin/wajig -p x -k software_mgmt
-w /usr/bin/snap -p x -k software_mgmt

#monitor apt config file which attackers can used it for persistence
-w /etc/apt/apt.conf.d/ -p wa -k apt_config

# PIP(3) (Python installs)
-w /usr/bin/pip -p x -k third_party_software_mgmt
-w /usr/local/bin/pip -p x -k third_party_software_mgmt
Expand Down Expand Up @@ -790,6 +794,10 @@
## Root command executions
-a always,exit -F arch=b64 -F euid=0 -F auid>=1000 -F auid!=-1 -S execve -k rootcmd

## in memory file execution(https://github.com/vahidmalekk/bypass-Neo23x0-auditd-config)
-a always,exit -F arch=b64 -F auid!=-1 -S execveat -k Memory-Process-creation
-a always,exit -F arch=b32 -F auid!=-1 -S execveat -k Memory-Process-creation

## File Deletion Events by User
-a always,exit -F arch=b64 -S rmdir -S unlink -S unlinkat -S rename -S renameat -F auid>=1000 -F auid!=-1 -k delete

Expand Down