Query: Sigma rule for Detects a network connection initiated by programs or processes running from suspicious or uncommon files system locatio
Matching passage: Sigma rule: Detects a network connection initiated by programs or processes running from suspicious or uncommon files system locatio. Logsource: windows / network_connection. Rule: title: Network Connection Initiated From Process Located In Potentially Suspicious Or Uncommon Location id: 7b434893-c57d-4f41-908d-6a17bf1ae98f related: - 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: e0f8ab85-0ac9-423b-a73a-81b3c7b1aa97 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 a network connection initiated by programs or processes running from suspicious or uncommon files system locations. ' references: - https://docs.google.com/spreadsheets/d/17pSTDNpa0sf6pHeRhusvWG6rThciE8CsXTSlDUAZDyo author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems) date: 2017-03-19 modified: 2026-03-29 tags: - attack.command-and-control - attack.t1105 logsource: category: network_connection product: windows detection: selection: Initiated: 'true' Image|contains: - :\$Recycle.bin - :\Perflogs\ - :\Temp\ - :\Users\Default\ - :\Users\Public\ - :\Windows\Fonts\ - :\Windows\IME\ - :\Windows\System32\Tasks\ - :\Windows\Tasks\ - \config\systemprofile\ - \Contacts\ - \Favorites\ - \Favourites\ - \Music\ - \Pictures\ - \Videos\ - \Windows\addins\ filter_main_domains: 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 - portmap.io - privatlab.com - privatlab.net - send.exploit.in - sendspace.com - storage.googleapis.com - storjshare.io - supabase.co - temp.sh - transfer.sh - trycloudflare.com - ufile.io - w3spaces.com - workers.dev - x0.at condition: selection and not 1 of filter_main_* falsepositives: - Unknown level: high
Near-miss passage: Sigma rule: detects BPFDoor .lock and .pid files access in temporary file storage facility. Logsource: linux / auditd. Rule: title: BPFDoor Abnormal Process ID or Lock File Accessed id: 808146b2-9332-4d78-9416-d7e47012d83d status: test description: detects BPFDoor .lock and .pid files access in temporary file storage facility references: - https://www.sandflysecurity.com/blog/bpfdoor-an-evasive-linux-backdoor-technical-analysis/ - https://www.elastic.co/security-labs/a-peek-behind-the-bpfdoor - https://www.rapid7.com/blog/post/tr-bpfdoor-telecom-networks-sleeper-cells-threat-research-report/ - https://github.com/rapid7/Rapid7-Labs/blob/741c7196ec12a0a56b63463d1fd726ff14d3a97a/BPFDoor/rapid7_detect_bpfdoor.sh author: Rafal Piasecki date: 2022-08-10 modified: 2026-03-30 tags: - attack.execution - attack.t1106 - attack.t1059 logsource: product: linux service: auditd detection: selection: type: PATH name: - /var/run/aepmonend.pid - /var/run/auditd.lock - /var/run/cma.lock - /var/run/console-kit.pid - /var/run/consolekit.pid - /var/run/daemon.pid - /var/run/hald-addon.pid - /var/run/hald-smartd.pid - /var/run/haldrund.pid - /var/run/hp-health.pid - /var/run/hpasmlit.lock - /var/run/hpasmlited.pid - /var/run/kdevrund.pid - /var/run/lldpad.lock - /var/run/mcelog.pid - /var/run/system.pid - /var/run/uvp-srv.pid - /var/run/vmtoolagt.pid - /var/run/xinetd.lock condition: selection falsepositives: - Unlikely level: high