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41 lines
1.3 KiB
YAML
41 lines
1.3 KiB
YAML
title: WannaCry Ransomware via Sysmon
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status: experimental
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description: Detects WannaCry ransomware activity via Sysmon
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reference: https://www.hybrid-analysis.com/sample/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa?environmentId=100
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author: Florian Roth (rule), Tom U. @c_APT_ure (collection)
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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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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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selection2:
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EventID: 1
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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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- '*@Please_Read_Me@.txt*'
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condition: selection1 or selection2
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fields:
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- CommandLine
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- ParentCommandLine
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falsepositives:
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- Diskpart.exe usage to manage partitions on the local hard drive
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level: critical
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