A newer version is available. For the latest information, see the
current release documentation.
Security Software Discovery via Grepedit
Identifies the use of the grep command to discover known third-party macOS and Linux security tools, such as Antivirus or Host Firewall details.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- auditbeat-*
Severity: medium
Risk score: 47
Runs every: 5 minutes
Searches indices from: now-9m (Date Math format, see also Additional look-back time
)
Maximum alerts per execution: 100
Tags:
- Elastic
- Host
- macOS
- Linux
- Threat Detection
- Discovery
Version: 2 (version history)
Added (Elastic Stack release): 7.12.0
Last modified (Elastic Stack release): 7.13.0
Rule authors: Elastic
Rule license: Elastic License v2
Potential false positivesedit
Endpoint Security installers, updaters and post installation verification scripts.
Rule queryedit
process where event.type == "start" and process.name : "grep" and user.id != "0" and not process.parent.executable : "/Library/Application Support/*" and process.args : ("Little Snitch*", "Avast*", "Avira*", "ESET*", "BlockBlock*", "360Sec*", "LuLu*", "KnockKnock*", "kav", "KIS", "RTProtectionDaemon*", "Malware*", "VShieldScanner*", "WebProtection*", "webinspectord*", "McAfee*", "isecespd*", "macmnsvc*", "masvc*", "kesl*", "avscan*", "guard*", "rtvscand*", "symcfgd*", "scmdaemon*", "symantec*", "sophos*", "osquery*", "elastic-endpoint*" ) and not (process.args : "Avast" and process.args : "Passwords")
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Discovery
- ID: TA0007
- Reference URL: https://attack.mitre.org/tactics/TA0007/
-
Technique:
- Name: Software Discovery
- ID: T1518
- Reference URL: https://attack.mitre.org/techniques/T1518/
Rule version historyedit
- Version 2 (7.13.0 release)
-
-
Updated query, changed from:
event.category : process and event.type : (start or process_started) and process.name : grep and process.args : ("Little Snitch" or Avast* or Avira* or ESET* or esets_* or BlockBlock or 360* or LuLu or KnockKnock* or kav or KIS or RTProtectionDaemon or Malware* or VShieldScanner or WebProtection or webinspectord or McAfee* or isecespd* or macmnsvc* or masvc or kesl or avscan or guard or rtvscand or symcfgd or scmdaemon or symantec or elastic-endpoint )
-