Sigma rule: Monitoring For Persistence Via BITS

Rule

Title

Monitoring For Persistence Via BITS

Status

test

Level

medium

Author

Sreeman

Date

2020-10-29

Modified

2024-01-25

File

rules/windows/process_creation/proc_creation_win_bitsadmin_potential_persistence.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

BITS will allow you to schedule a command to execute after a successful download to notify you that the job is finished.
When the job runs on the system the command specified in the BITS job will be executed.
This can be abused by actors to create a backdoor within the system and for persistence.
It will be chained in a BITS job to schedule the download of malware/additional binaries and execute the program after being downloaded.

Log source

product

windows

category

process_creation

Detection

selection_img:
    - Image|endswith: '\bitsadmin.exe'
    - OriginalFileName: 'bitsadmin.exe'
selection_cli_notify_1:
    CommandLine|contains: '/SetNotifyCmdLine'
selection_cli_notify_2:
    CommandLine|contains:
        - '%COMSPEC%'
        - 'cmd.exe'
        - 'regsvr32.exe'
selection_cli_add_1:
    CommandLine|contains: '/Addfile'
selection_cli_add_2:
    CommandLine|contains:
        - 'http:'
        - 'https:'
        - 'ftp:'
        - 'ftps:'
condition: selection_img and (all of selection_cli_notify_* or all of selection_cli_add_*)

False positives (as the rule lists them)

• Unknown

Tags

• attack.persistence
• attack.execution
• attack.stealth
• attack.t1197

MITRE ATT&CK ids this rule names

• T1197

References

• https://www.fireeye.com/blog/threat-research/2020/10/kegtap-and-singlemalt-with-a-ransomware-chaser.html
• http://0xthem.blogspot.com/2014/03/t-emporal-persistence-with-and-schtasks.html
• https://isc.sans.edu/diary/Wipe+the+drive+Stealthy+Malware+Persistence+Mechanism+-+Part+1/15394

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/process_creation/proc_creation_win_bitsadmin_potential_persistence.yml