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26 lines
1.1 KiB
YAML
26 lines
1.1 KiB
YAML
title: Bad Opsec Defaults Sacrificial Processes With Improper Arguments
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id: a7c3d773-caef-227e-a7e7-c2f13c622329
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status: experimental
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description: 'Detects attackers using tooling with bad opsec defaults e.g. spawning a sacrificial process to inject a capability into the process without taking into account how the process is normally run, one trivial example of this is using rundll32.exe without arguments as a sacrificial process (default in CS, now highlighted by c2lint), running WerFault without arguments (Kraken - credit am0nsec), and other examples.'
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author: 'Oleg Kolesnikov @securonix invrep_de, oscd.community'
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date: 2020/10/23
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references:
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- https://blog.malwarebytes.com/malwarebytes-news/2020/10/kraken-attack-abuses-wer-service/
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- https://www.cobaltstrike.com/help-opsec
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tags:
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- attack.defense_evasion
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- attack.t1085 # legacy
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- attack.t1218.011
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logsource:
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category: process_creation
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product: windows
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detection:
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selection:
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CommandLine|endswith:
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- '\WerFault.exe'
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- '\rundll32.exe'
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condition: selection
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falsepositives:
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- Unlikely
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level: high
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