Suspicious Cmdl32 Execution

calendar Oct 17, 2023 · attack.execution attack.defense_evasion attack.t1218 attack.t1202  ·
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lolbas Cmdl32 is use to download a payload to evade antivirus

Sigma rule (View on GitHub)

 1title: Suspicious Cmdl32 Execution
 2id: f37aba28-a9e6-4045-882c-d5004043b337
 3status: test
 4description: lolbas Cmdl32 is use to download a payload to evade antivirus
 5references:
 6    - https://lolbas-project.github.io/lolbas/Binaries/Cmdl32/
 7    - https://twitter.com/SwiftOnSecurity/status/1455897435063074824
 8author: frack113
 9date: 2021/11/03
10modified: 2022/06/12
11tags:
12    - attack.execution
13    - attack.defense_evasion
14    - attack.t1218
15    - attack.t1202
16logsource:
17    category: process_creation
18    product: windows
19detection:
20    selection_img:
21        - Image|endswith: '\cmdl32.exe'
22        - OriginalFileName: CMDL32.EXE
23    selection_cli:
24        CommandLine|contains|all:
25            - '/vpn '
26            - '/lan '
27    condition: all of selection*
28falsepositives:
29    - Unknown
30level: medium

References

  • Cmdl32 | LOLBAS

    Download a file from the web address specified in the configuration file. The downloaded file will be in %TMP% under the name VPNXXXX.tmp where "X" denotes a random number or letter. cmdl32 /vpn /l...


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  • Something went wrong, but don’t fret — let’s give it another shot.


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