Query: detection rule: Detects cases in which an ISO files is opend within an archiver like 7Zip or Winrar, which is a sign of phishing as thre
Matching passage: Sigma rule: Detects cases in which an ISO files is opend within an archiver like 7Zip or Winrar, which is a sign of phishing as thre. Logsource: windows / process_creation. Rule: title: Phishing Pattern ISO in Archive id: fcdf69e5-a3d3-452a-9724-26f2308bf2b1 status: test description: Detects cases in which an ISO files is opend within an archiver like 7Zip or Winrar, which is a sign of phishing as threat actors put small ISO files in archives as email attachments to bypass certain filters and protective measures (mark of web) references: - https://twitter.com/1ZRR4H/status/1534259727059787783 - https://app.any.run/tasks/e1fe6a62-bce8-4323-a49a-63795d9afd5d/ author: Florian Roth (Nextron Systems) date: 2022-06-07 tags: - attack.initial-access - attack.t1566 logsource: category: process_creation product: windows detection: selection: ParentImage|endswith: - \Winrar.exe - \7zFM.exe - \peazip.exe Image|endswith: - \isoburn.exe - \PowerISO.exe - \ImgBurn.exe condition: selection falsepositives: - Legitimate cases in which archives contain ISO or IMG files and the user opens the archive and the image via clicking and not extraction level: high
Near-miss passage: Sigma rule: Detects tampering with the "Enabled" registry key in order to disable Windows logging of a Windows event channel. Logsource: windows / registry_set. Rule: title: Disable Windows Event Logging Via Registry id: 2f78da12-f7c7-430b-8b19-a28f269b77a3 status: test description: Detects tampering with the "Enabled" registry key in order to disable Windows logging of a Windows event channel references: - https://twitter.com/WhichbufferArda/status/1543900539280293889 - https://github.com/DebugPrivilege/CPP/blob/c39d365617dbfbcb01fffad200d52b6239b2918c/Windows%20Defender/RestoreDefenderConfig.cpp author: frack113, Nasreddine Bencherchali (Nextron Systems) date: 2022-07-04 modified: 2024-03-25 tags: - attack.defense-impairment - attack.t1685.001 logsource: category: registry_set product: windows detection: selection: TargetObject|contains: \Microsoft\Windows\CurrentVersion\WINEVT\Channels\ TargetObject|endswith: \Enabled Details: DWORD (0x00000000) filter_main_wevutil: Image: C:\Windows\system32\wevtutil.exe filter_main_iis: Image|startswith: C:\Windows\winsxs\ Image|endswith: \TiWorker.exe filter_main_svchost: Image: C:\Windows\System32\svchost.exe TargetObject|contains: - \Microsoft\Windows\CurrentVersion\WINEVT\Channels\Microsoft-Windows-FileInfoMinifilter - \Microsoft\Windows\CurrentVersion\WINEVT\Channels\Microsoft-Windows-ASN1\ - \Microsoft\Windows\CurrentVersion\WINEVT\Channels\Microsoft-Windows-Kernel-AppCompat\ - \Microsoft\Windows\CurrentVersion\WINEVT\Channels\Microsoft-Windows-Runtime\Error\ - \Microsoft\Windows\CurrentVersion\WINEVT\Channels\Microsoft-Windows-CAPI2/Operational\ filter_main_trusted_installer: Image: C:\Windows\servicing\TrustedInstaller.exe TargetObject|contains: \Microsoft\Windows\CurrentVersion\WINEVT\Channels\Microsoft-Windows-Compat-Appraiser filter_optional_empty: Image: '' filter_optional_null: Image: null condition: selection and not 1 of filter_main_* and not 1 of filter_optional_* falsepositives: - Rare falsepositives may occur from legitimate administrators disabling specific event log for troubleshooting level: high