86 lines
2.1 KiB
YAML
86 lines
2.1 KiB
YAML
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title: WannaCry Ransomware
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author: Florian Roth (rule), Tom U. @c_APT_ure (collection), oscd.community, Jonhnathan
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Ribeiro
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date: 2019/01/16
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description: Detects WannaCry ransomware activity
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detection:
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SELECTION_1:
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EventID: 1
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SELECTION_10:
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CommandLine: '*bcdedit*'
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SELECTION_11:
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CommandLine: '*/set*'
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SELECTION_12:
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CommandLine: '*{default}*'
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SELECTION_13:
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CommandLine: '*recoveryenabled*'
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SELECTION_14:
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CommandLine: '*no*'
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SELECTION_15:
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CommandLine: '*wbadmin*'
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SELECTION_16:
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CommandLine: '*delete*'
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SELECTION_17:
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CommandLine: '*catalog*'
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SELECTION_18:
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CommandLine: '*-quiet*'
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SELECTION_19:
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CommandLine: '*@Please_Read_Me@.txt*'
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SELECTION_2:
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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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- '*\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'
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- '*\linuxnew.exe'
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- '*\wannacry.exe'
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SELECTION_3:
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Image: '*WanaDecryptor*'
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SELECTION_4:
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CommandLine: '*icacls*'
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SELECTION_5:
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CommandLine: '*/grant*'
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SELECTION_6:
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CommandLine: '*Everyone:F*'
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SELECTION_7:
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CommandLine: '*/T*'
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SELECTION_8:
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CommandLine: '*/C*'
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SELECTION_9:
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CommandLine: '*/Q*'
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condition: (SELECTION_1 and (SELECTION_2 or SELECTION_3 or (SELECTION_4 and SELECTION_5
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and SELECTION_6 and SELECTION_7 and SELECTION_8 and SELECTION_9) or (SELECTION_10
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and SELECTION_11 and SELECTION_12 and SELECTION_13 and SELECTION_14) or (SELECTION_15
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and SELECTION_16 and SELECTION_17 and SELECTION_18) or SELECTION_19))
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falsepositives:
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- Diskpart.exe usage to manage partitions on the local hard drive
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fields:
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- CommandLine
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- ParentCommandLine
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id: 41d40bff-377a-43e2-8e1b-2e543069e079
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level: critical
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logsource:
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category: process_creation
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product: windows
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modified: 2020/09/01
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references:
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- https://www.hybrid-analysis.com/sample/ed01ebfbc9eb5bbea545af4d01bf5f1071661840480439c6e5babe8e080e41aa?environmentId=100
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status: experimental
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tags:
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- attack.lateral_movement
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- attack.t1210
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- attack.discovery
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- attack.t1083
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- attack.defense_evasion
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- attack.t1222.001
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- attack.t1222
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- attack.impact
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- attack.t1486
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- attack.t1490
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ruletype: SIGMA
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