Persistence via BITS Job Notify Cmdlineedit
An adversary can use the Background Intelligent Transfer Service (BITS) SetNotifyCmdLine method to execute a program that runs after a job finishes transferring data or after a job enters a specified state in order to persist on a system.
Rule type: eql
Rule indices:
- logs-endpoint.events.*
- winlogbeat-*
- logs-windows.*
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
References:
- https://pentestlab.blog/2019/10/30/persistence-bits-jobs/
- https://docs.microsoft.com/en-us/windows/win32/api/bits1_5/nf-bits1_5-ibackgroundcopyjob2-setnotifycmdline
- https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/bitsadmin-setnotifycmdline
- https://www.elastic.co/blog/hunting-for-persistence-using-elastic-security-part-2
Tags:
- Elastic
- Host
- Windows
- Threat Detection
- Persistence
Version: 100 (version history)
Added (Elastic Stack release): 7.13.0
Last modified (Elastic Stack release): 8.5.0
Rule authors: Elastic
Rule license: Elastic License v2
Investigation guideedit
Rule queryedit
process where event.type == "start" and process.parent.name :
"svchost.exe" and process.parent.args : "BITS" and not
process.executable :
("?:\\Windows\\System32\\WerFaultSecure.exe",
"?:\\Windows\\System32\\WerFault.exe",
"?:\\Windows\\System32\\wermgr.exe",
"?:\\WINDOWS\\system32\\directxdatabaseupdater.exe")
Threat mappingedit
Framework: MITRE ATT&CKTM
-
Tactic:
- Name: Persistence
- ID: TA0003
- Reference URL: https://attack.mitre.org/tactics/TA0003/
-
Technique:
- Name: BITS Jobs
- ID: T1197
- Reference URL: https://attack.mitre.org/techniques/T1197/
Rule version historyedit
- Version 100 (8.5.0 release)
-
- Formatting only
- Version 4 (8.4.0 release)
-
- Formatting only
- Version 2 (8.2.0 release)
-
- Formatting only