Query: rule covering Detects executables located in potentially suspicious directories initiating network connections towards file sharing do
Matching passage: Sigma rule: Detects executables located in potentially suspicious directories initiating network connections towards file sharing do. Logsource: windows / network_connection. Rule: title: Network Communication Initiated To File Sharing Domains From Process Located In Suspicious Folder id: e0f8ab85-0ac9-423b-a73a-81b3c7b1aa97 related: - id: 635dbb88-67b3-4b41-9ea5-a3af2dd88153 type: obsolete - id: 8b48ad89-10d8-4382-a546-50588c410f0d type: similar - id: d635249d-86b5-4dad-a8c7-d7272b788586 type: similar - id: 52182dfb-afb7-41db-b4bc-5336cb29b464 type: similar - id: ae02ed70-11aa-4a22-b397-c0d0e8f6ea99 type: similar - id: 7b434893-c57d-4f41-908d-6a17bf1ae98f type: similar - id: 8518ed3d-f7c9-4601-a26c-f361a4256a0c type: similar - id: 42a5f1e7-9603-4f6d-97ae-3f37d130d794 type: similar - id: 56454143-524f-49fb-b1c6-3fb8b1ad41fb type: similar - id: b6e04788-29e1-4557-bb14-77f761848ab8 type: similar - id: a0d7e4d2-bede-4141-8896-bc6e237e977c type: similar - id: 297ae038-edc2-4b2e-bb3e-7c5fc94dd5c7 type: similar status: test description: Detects executables located in potentially suspicious directories initiating network connections towards file sharing domains. references: - https://twitter.com/M_haggis/status/900741347035889665 - https://twitter.com/M_haggis/status/1032799638213066752 - https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/ransomware-hive-conti-avoslocker - https://www.cisa.gov/uscert/ncas/alerts/aa22-321a - https://github.com/EmpireProject/Empire/blob/e37fb2eef8ff8f5a0a689f1589f424906fe13055/data/module_source/exfil/Invoke-ExfilDataToGitHub.ps1 author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) date: 2018-08-30 modified: 2026-03-29 tags: - attack.command-and-control - attack.t1105 logsource: category: network_connection product: windows detection: selection_paths: Image|contains: - :\$Recycle.bin - :\Perflogs\ - :\Temp\ - :\Users\Default\ - :\Users\Public\ - :\Windows\Fonts\ - :\Windows\IME\ - :\Windows\System32\Tasks\ - :\Windows\Tasks\ - :\Windows\Temp\ - \AppData\Temp\ - \config\systemprofile\ - \Windows\addins\ selection_domains: Initiated: 'true' DestinationHostname|endswith: - .githubusercontent.com - 0x0.st - anonfiles.com - bashupload.com - cdn.discordapp.com - chunk.io - ddns.net - dl.dropboxusercontent.com - ghostbin.co - github.com - glitch.me - gofile.io - hastebin.com - mediafire.com - mega.co.nz - mega.nz - onrender.com - pages.dev - paste.ee - pastebin.com - pastebin.pl - pastetext.net - pixeldrain.com - privatlab.com - privatlab.net - send.exploit.in - sendspace.com - storage.googleapis.com - storjshare.io - supabase.co - temp.sh - transfer.sh - trycloudfl
Near-miss passage: Sigma rule: Detects calls to "Add-Content" cmdlet in order to modify the content of the user profile and potentially adding suspicio. Logsource: windows / ps_script. Rule: title: Potential Persistence Via PowerShell User Profile Using Add-Content id: 05b3e303-faf0-4f4a-9b30-46cc13e69152 status: test description: Detects calls to "Add-Content" cmdlet in order to modify the content of the user profile and potentially adding suspicious commands for persistence references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1546.013/T1546.013.md author: frack113, Nasreddine Bencherchali (Nextron Systems) date: 2021-08-18 modified: 2023-05-04 tags: - attack.persistence - attack.privilege-escalation - attack.t1546.013 logsource: product: windows category: ps_script definition: 'Requirements: Script Block Logging must be enabled' detection: selection_add: ScriptBlockText|contains: Add-Content $profile selection_options: ScriptBlockText|contains: - '-Value "IEX ' - -Value "Invoke-Expression - -Value "Invoke-WebRequest - -Value "Start-Process - '-Value ''IEX ' - -Value 'Invoke-Expression - -Value 'Invoke-WebRequest - -Value 'Start-Process condition: all of selection_* falsepositives: - Legitimate administration and tuning scripts that aim to add functionality to a user PowerShell session level: medium