IMPORTANT: No additional bug fixes or documentation updates
will be released for this version. For the latest information, see the
current release documentation.
Potential SSH-IT SSH Worm Downloaded
editPotential SSH-IT SSH Worm Downloaded
editIdentifies processes that are capable of downloading files with command line arguments containing URLs to SSH-IT’s autonomous SSH worm. This worm intercepts outgoing SSH connections every time a user uses ssh.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
Severity: medium
Risk score: 47
Runs every: 5m
Searches indices from: now-9m (Date Math format, see also Additional look-back time)
Maximum alerts per execution: 100
References:
Tags:
- Domain: Endpoint
- OS: Linux
- Use Case: Threat Detection
- Tactic: Lateral Movement
- Data Source: Elastic Defend
- Data Source: Elastic Endgame
Version: 1
Rule authors:
- Elastic
Rule license: Elastic License v2
Rule query
editprocess where host.os.type == "linux" and event.action == "exec" and event.type == "start" and
process.name in ("curl", "wget") and process.args : (
"https://thc.org/ssh-it/x", "http://nossl.segfault.net/ssh-it-deploy.sh", "https://gsocket.io/x",
"https://thc.org/ssh-it/bs", "http://nossl.segfault.net/bs"
)
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Lateral Movement
- ID: TA0008
- Reference URL: https://attack.mitre.org/tactics/TA0008/
-
Technique:
- Name: Remote Services
- ID: T1021
- Reference URL: https://attack.mitre.org/techniques/T1021/
-
Sub-technique:
- Name: SSH
- ID: T1021.004
- Reference URL: https://attack.mitre.org/techniques/T1021/004/
-
Technique:
- Name: Remote Service Session Hijacking
- ID: T1563
- Reference URL: https://attack.mitre.org/techniques/T1563/
-
Sub-technique:
- Name: SSH Hijacking
- ID: T1563.001
- Reference URL: https://attack.mitre.org/techniques/T1563/001/