Renamed Mavinject.EXE Execution

calendar Dec 1, 2023 · attack.defense_evasion attack.privilege_escalation attack.t1055.001 attack.t1218.013  ·
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Detects the execution of a renamed version of the "Mavinject" process. Which can be abused to perform process injection using the "/INJECTRUNNING" flag

Sigma rule (View on GitHub)

 1title: Renamed Mavinject.EXE Execution
 2id: e6474a1b-5390-49cd-ab41-8d88655f7394
 3status: test
 4description: Detects the execution of a renamed version of the "Mavinject" process. Which can be abused to perform process injection using the "/INJECTRUNNING" flag
 5references:
 6    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218/T1218.md
 7    - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1056.004/T1056.004.md
 8    - https://posts.specterops.io/mavinject-exe-functionality-deconstructed-c29ab2cf5c0e
 9    - https://twitter.com/gN3mes1s/status/941315826107510784
10    - https://reaqta.com/2017/12/mavinject-microsoft-injector/
11    - https://twitter.com/Hexacorn/status/776122138063409152  # Deleted tweet
12    - https://github.com/SigmaHQ/sigma/issues/3742
13    - https://github.com/keyboardcrunch/SentinelOne-ATTACK-Queries/blob/6a228d23eefe963ca81f2d52f94b815f61ef5ee0/Tactics/DefenseEvasion.md#t1055-process-injection
14author: frack113, Florian Roth
15date: 2022/12/05
16modified: 2023/02/03
17tags:
18    - attack.defense_evasion
19    - attack.privilege_escalation
20    - attack.t1055.001
21    - attack.t1218.013
22logsource:
23    category: process_creation
24    product: windows
25detection:
26    selection:
27        OriginalFileName:
28            - 'mavinject32.exe'
29            - 'mavinject64.exe'
30    filter:
31        Image|endswith:
32            - '\mavinject32.exe'
33            - '\mavinject64.exe'
34    condition: selection and not filter
35falsepositives:
36    - Unlikely
37level: high

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