Query: Sigma rule for Detects legitimate applications writing any type of file to uncommon or suspicious locations that are not typical for ap
Matching passage: Sigma rule: Detects legitimate applications writing any type of file to uncommon or suspicious locations that are not typical for ap. Logsource: windows / file_event. Rule: title: Legitimate Application Writing Files In Uncommon Location id: 1cf465a1-2609-4c15-9b66-c32dbe4bfd67 related: - id: 2ddef153-167b-4e89-86b6-757a9e65dcac type: similar status: experimental description: 'Detects legitimate applications writing any type of file to uncommon or suspicious locations that are not typical for application data storage or execution. Adversaries may leverage legitimate applications (Living off the Land Binaries - LOLBins) to drop or download malicious files to uncommon locations on the system to evade detection by security solutions. ' references: - https://lolbas-project.github.io/#/download author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-12-10 tags: - attack.stealth - attack.t1218 - attack.command-and-control - attack.t1105 logsource: product: windows category: file_event detection: selection_img: Image|endswith: - \eqnedt32.exe - \wordpad.exe - \wordview.exe - \cmdl32.exe - \certutil.exe - \certoc.exe - \CertReq.exe - \bitsadmin.exe - \Desktopimgdownldr.exe - \esentutl.exe - \expand.exe - \extrac32.exe - \replace.exe - \mshta.exe - \ftp.exe - \Ldifde.exe - \RdrCEF.exe - \hh.exe - \finger.exe - \findstr.exe selection_locations: TargetFilename|contains: - :\Perflogs - :\ProgramData\ - :\Temp\ - :\Users\Public\ - :\Windows\ - \$Recycle.Bin\ - \AppData\Local\ - \AppData\Roaming\ - \Contacts\ - \Desktop\ - \Favorites\ - \Favourites\ - \inetpub\wwwroot\ - \Music\ - \Pictures\ - \Start Menu\Programs\Startup\ - \Users\Default\ - \Videos\ condition: all of selection_* falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/file/file_event/file_event_win_susp_legitimate_app_dropping_in_uncommon_location/info.yml
Near-miss passage: Sigma rule: Detects the creation of a named pipe seen used by known APTs or malware.. Logsource: windows / pipe_created. Rule: title: Malicious Named Pipe Created id: fe3ac066-98bb-432a-b1e7-a5229cb39d4a status: test description: Detects the creation of a named pipe seen used by known APTs or malware. references: - https://securelist.com/wild-neutron-economic-espionage-threat-actor-returns-with-new-tricks/71275/ - https://securelist.com/faq-the-projectsauron-apt/75533/ - https://web.archive.org/web/20180725233601/https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf - https://www.us-cert.gov/ncas/alerts/TA17-117A - https://www.fireeye.com/blog/threat-research/2020/12/evasive-attacker-leverages-solarwinds-supply-chain-compromises-with-sunburst-backdoor.html - https://thedfirreport.com/2020/06/21/snatch-ransomware/ - https://github.com/RiccardoAncarani/LiquidSnake - https://www.accenture.com/us-en/blogs/cyber-defense/turla-belugasturgeon-compromises-government-entity - https://us-cert.cisa.gov/ncas/analysis-reports/ar19-304a - https://download.bitdefender.com/resources/files/News/CaseStudies/study/115/Bitdefender-Whitepaper-PAC-A4-en-EN1.pdf - https://unit42.paloaltonetworks.com/emissary-panda-attacks-middle-east-government-sharepoint-servers/ - https://thedfirreport.com/2022/02/21/qbot-and-zerologon-lead-to-full-domain-compromise/ author: Florian Roth (Nextron Systems), blueteam0ps, elhoim date: 2017-11-06 modified: 2023-08-07 tags: - attack.privilege-escalation - attack.stealth - attack.t1055 logsource: product: windows category: pipe_created definition: Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575 detection: selection: PipeName: - \46a676ab7f179e511e30dd2dc41bd388 - \583da945-62af-10e8-4902-a8f205c72b2e - \6e7645c4-32c5-4fe3-aabf-e94c2f4370e7 - \9f81f59bc58452127884ce513865ed20 - \adschemerpc - \ahexec - \AnonymousPipe - \bc31a7 - \bc367 - \bizkaz - \csexecsvc - \dce_3d - \e710f28d59aa529d6792ca6ff0ca1b34 - \gruntsvc - \isapi_dg - \isapi_dg2 - \isapi_http - \jaccdpqnvbrrxlaf - \lsassw - \NamePipe_MoreWindows - \pcheap_reuse - \Posh* - \rpchlp_3 - \sdlrpc - \svcctl - \testPipe -