Password Protected ZIP File Opened

calendar Oct 17, 2023 · attack.defense_evasion attack.t1027  ·
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Detects the extraction of password protected ZIP archives. See the filename variable for more details on which file has been opened.

Sigma rule (View on GitHub)

 1title: Password Protected ZIP File Opened
 2id: 00ba9da1-b510-4f6b-b258-8d338836180f
 3status: test
 4description: Detects the extraction of password protected ZIP archives. See the filename variable for more details on which file has been opened.
 5references:
 6    - https://twitter.com/sbousseaden/status/1523383197513379841
 7author: Florian Roth (Nextron Systems)
 8date: 2022/05/09
 9tags:
10    - attack.defense_evasion
11    - attack.t1027
12logsource:
13    product: windows
14    service: security
15detection:
16    selection:
17        EventID: 5379
18        TargetName|contains: 'Microsoft_Windows_Shell_ZipFolder:filename'
19    filter:  # avoid overlaps with 54f0434b-726f-48a1-b2aa-067df14516e4
20        TargetName|contains: '\Temporary Internet Files\Content.Outlook'
21    condition: selection and not filter
22falsepositives:
23    - Legitimate used of encrypted ZIP files
24level: medium

References

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