Detectionhightest

Potential GobRAT File Discovery Via Grep

Detects the use of grep to discover specific files created by the GobRAT malware

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
Joseliyo SanchezCreated Fri Jun 02e34cfa0c-0a50-4210-9cb3-5632d08eb041linux
Log Source
LinuxProcess Creation
ProductLinux← raw: linux
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic1 selector
detection:
    selection:
        Image|endswith: '/grep'
        CommandLine|contains:
            - 'apached'
            - 'frpc'
            - 'sshd.sh'
            - 'zone.arm'
    condition: selection
False Positives
Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

Rule Metadata
Rule ID
e34cfa0c-0a50-4210-9cb3-5632d08eb041
Status
test
Level
high
Type
Detection
Created
Fri Jun 02
Path
rules/linux/process_creation/proc_creation_lnx_malware_gobrat_grep_payload_discovery.yml
Raw Tags
attack.discoveryattack.t1082
View on GitHub