Detection rules › Sigma
Bitsadmin to Uncommon IP Server Address
Detects Bitsadmin connections to IP addresses instead of FQDN names
MITRE ATT&CK coverage
| Tactic | Techniques |
|---|---|
| Execution | T1197 BITS Jobs |
| Persistence | T1197 BITS Jobs |
| Stealth | T1197 BITS Jobs |
| Command & Control | T1071.001 Application Layer Protocol: Web Protocols |
Rule body yaml
title: Bitsadmin to Uncommon IP Server Address
id: 8ccd35a2-1c7c-468b-b568-ac6cdf80eec3
status: test
description: Detects Bitsadmin connections to IP addresses instead of FQDN names
references:
- https://isc.sans.edu/diary/Microsoft+BITS+Used+to+Download+Payloads/21027
author: Florian Roth (Nextron Systems)
date: 2022-06-10
modified: 2022-08-24
tags:
- attack.command-and-control
- attack.execution
- attack.stealth
- attack.t1071.001
- attack.persistence
- attack.t1197
- attack.s0190
logsource:
category: proxy
detection:
selection:
c-useragent|startswith: 'Microsoft BITS/'
cs-host|endswith:
- '1'
- '2'
- '3'
- '4'
- '5'
- '6'
- '7'
- '8'
- '9'
condition: selection
falsepositives:
- Unknown
level: high
Stages and Predicates
Stage 0: condition
selectionStage 1: selection
selection:
c-useragent|startswith: 'Microsoft BITS/'
cs-host|endswith:
- '1'
- '2'
- '3'
- '4'
- '5'
- '6'
- '7'
- '8'
- '9'
Indicators
Each row is a field, operator, and value that the rule matches. The corpus column counts how many other rules in the catalog look for the same combination: high numbers point to widely-used, community-vetted indicators. Blank or 1 shows that the indicator is specific to this rule.
| Field | Kind | Values |
|---|---|---|
c-useragent | starts_with |
|
cs-host | ends_with |
|