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68 lines
2.2 KiB
YAML
68 lines
2.2 KiB
YAML
action: global
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title: WannaCry Ransomware
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description: Detects WannaCry Ransomware Activity
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status: experimental
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reference:
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- https://www.hybrid-analysis.com/sample/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa
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author: Florian Roth
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detection:
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selection1:
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CommandLine:
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- '*vssadmin delete shadows*'
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- '*icacls * /grant Everyone:F /T /C /Q*'
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- '*bcdedit /set {default} recoveryenabled no*'
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- '*wbadmin delete catalog -quiet*'
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condition: selection1 or selection2
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falsepositives:
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- Unknown
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level: critical
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---
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# Windows Audit Log
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logsource:
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product: windows
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service: security
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description: 'Requirements: Audit Policy : Detailed Tracking > Audit Process creation, Group Policy : Administrative Templates\System\Audit Process Creation'
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detection:
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selection1:
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# Requires group policy 'Audit Process Creation' > Include command line in process creation events
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EventID: 4688
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selection2:
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# Does not require group policy 'Audit Process Creation' > Include command line in process creation events
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EventID: 4688
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NewProcessName:
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- '*\tasksche.exe'
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- '*\mssecsvc.exe'
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- '*\taskdl.exe'
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- '*\WanaDecryptor*'
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- '*\taskhsvc.exe'
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- '*\taskse.exe'
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- '*\111.exe'
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- '*\lhdfrgui.exe'
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- '*\diskpart.exe' # Rare, but can be false positive
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- '*\linuxnew.exe'
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- '*\wannacry.exe'
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---
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# Sysmon
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logsource:
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product: windows
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service: sysmon
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detection:
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selection1:
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# Requires group policy 'Audit Process Creation' > Include command line in process creation events
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EventID: 1
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selection2:
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# Does not require group policy 'Audit Process Creation' > Include command line in process creation events
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EventID: 1
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Image:
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- '*\tasksche.exe'
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- '*\mssecsvc.exe'
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- '*\taskdl.exe'
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- '*\WanaDecryptor*'
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- '*\taskhsvc.exe'
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- '*\taskse.exe'
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- '*\111.exe'
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- '*\lhdfrgui.exe'
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- '*\diskpart.exe' # Rare, but can be false positive
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- '*\linuxnew.exe'
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- '*\wannacry.exe'
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