Query: detect Detects changes to the Internet Explorer "DisableFirstRunCustomize" value, which prevents Internet Explorer from running in logs
Matching passage: Sigma rule: Detects changes to the Internet Explorer "DisableFirstRunCustomize" value, which prevents Internet Explorer from running. Logsource: windows / registry_set. Rule: title: Internet Explorer DisableFirstRunCustomize Enabled id: ab567429-1dfb-4674-b6d2-979fd2f9d125 status: test description: 'Detects changes to the Internet Explorer "DisableFirstRunCustomize" value, which prevents Internet Explorer from running the first run wizard the first time a user starts the browser after installing Internet Explorer or Windows. ' references: - https://www.ncsc.gov.uk/static-assets/documents/malware-analysis-reports/devil-bait/NCSC-MAR-Devil-Bait.pdf - https://unit42.paloaltonetworks.com/operation-ke3chang-resurfaces-with-new-tidepool-malware/ - https://admx.help/?Category=InternetExplorer&Policy=Microsoft.Policies.InternetExplorer::NoFirstRunCustomise author: Nasreddine Bencherchali (Nextron Systems) date: 2023-05-16 modified: 2025-10-07 tags: - attack.defense-impairment logsource: product: windows category: registry_set detection: selection: TargetObject|endswith: \Microsoft\Internet Explorer\Main\DisableFirstRunCustomize Details: - DWORD (0x00000001) - DWORD (0x00000002) filter_main_generic: Image: - C:\Windows\explorer.exe - C:\Windows\System32\ie4uinit.exe filter_optional_avira: Image|contains|all: - \Temp\ - \.cr\avira_ Details|contains: DWORD (0x00000001) filter_optional_foxit: Image: - C:\Program Files (x86)\Foxit Software\Foxit PDF Reader\FoxitPDFReader.exe - C:\Program Files\Foxit Software\Foxit PDF Reader\FoxitPDFReader.exe Details|contains: DWORD (0x00000001) condition: selection and not 1 of filter_main_* and not 1 of filter_optional_* falsepositives: - As this is controlled by group policy as well as user settings. Some false positives may occur. level: medium
Near-miss passage: Sigma rule: This method detects mimikatz keywords in different Eventlogs (some of them only appear in older Mimikatz version that ar. Logsource: windows. Rule: title: Mimikatz Use id: 06d71506-7beb-4f22-8888-e2e5e2ca7fd8 status: test description: This method detects mimikatz keywords in different Eventlogs (some of them only appear in older Mimikatz version that are however still used by different threat groups) references: - https://tools.thehacker.recipes/mimikatz/modules author: Florian Roth (Nextron Systems), David ANDRE (additional keywords) date: 2017-01-10 modified: 2022-01-05 tags: - attack.s0002 - attack.lateral-movement - attack.credential-access - car.2013-07-001 - car.2019-04-004 - attack.t1003.002 - attack.t1003.004 - attack.t1003.001 - attack.t1003.006 logsource: product: windows detection: keywords: - dpapi::masterkey - eo.oe.kiwi - event::clear - event::drop - gentilkiwi.com - kerberos::golden - kerberos::ptc - kerberos::ptt - kerberos::tgt - Kiwi Legit Printer - 'lsadump::' - mimidrv.sys - \mimilib.dll - misc::printnightmare - misc::shadowcopies - misc::skeleton - privilege::backup - privilege::debug - privilege::driver - 'sekurlsa::' filter: EventID: 15 condition: keywords and not filter falsepositives: - Naughty administrators - AV Signature updates - Files with Mimikatz in their filename level: high