Sigma rule: File Download Via Bitsadmin To A Suspicious Target Folder

Rule

Title

File Download Via Bitsadmin To A Suspicious Target Folder

Status

test

Level

high

Author

Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems)

Date

2022-06-28

Modified

2025-12-10

File

rules/windows/process_creation/proc_creation_win_bitsadmin_download_susp_targetfolder.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects usage of bitsadmin downloading a file to a suspicious target folder

Log source

product

windows

category

process_creation

Detection

selection_img:
    - Image|endswith: '\bitsadmin.exe'
    - OriginalFileName: 'bitsadmin.exe'
selection_flags:
    CommandLine|contains:
        - ' /transfer '
        - ' /create '
        - ' /addfile '
selection_folder:
    CommandLine|contains:
        - ':\Perflogs'
        - ':\ProgramData\'
        - ':\Temp\'
        - ':\Users\Public\'
        - ':\Windows\'
        - '\$Recycle.Bin\'
        - '\AppData\Local\'
        - '\AppData\Roaming\'
        - '\Contacts\'
        - '\Desktop\'
        - '\Favorites\'
        - '\Favourites\'
        - '\inetpub\wwwroot\'
        - '\Music\'
        - '\Pictures\'
        - '\Start Menu\Programs\Startup\'
        - '\Users\Default\'
        - '\Videos\'
        - '%ProgramData%'
        - '%public%'
        - '%temp%'
        - '%tmp%'
condition: all of selection_*

False positives (as the rule lists them)

• Unknown

Tags

• attack.persistence
• attack.execution
• attack.stealth
• attack.t1197
• attack.s0190
• attack.t1036.003
• attack.command-and-control
• attack.t1105

MITRE ATT&CK ids this rule names

• S0190
• T1036.003
• T1105
• T1197

Related rules

• 6e30c82f-a9f8-4aab-b79c-7c12bce6f248 (obsolete)
• 1cf465a1-2609-4c15-9b66-c32dbe4bfd67 (similar)

References

• https://blog.netspi.com/15-ways-to-download-a-file/#bitsadmin
• https://isc.sans.edu/diary/22264
• https://lolbas-project.github.io/lolbas/Binaries/Bitsadmin/
• https://blog.talosintelligence.com/breaking-the-silence-recent-truebot-activity/

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_download_susp_targetfolder.yml