Query: alert when Detects the download of suspicious file type from a well-known file and paste sharing domain
Matching passage: Sigma rule: Detects the download of suspicious file type from a well-known file and paste sharing domain. Logsource: windows / create_stream_hash. Rule: title: Unusual File Download From File Sharing Websites - File Stream id: ae02ed70-11aa-4a22-b397-c0d0e8f6ea99 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: e0f8ab85-0ac9-423b-a73a-81b3c7b1aa97 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 the download of suspicious file type from a well-known file and paste sharing domain references: - https://www.ultimatewindowssecurity.com/securitylog/encyclopedia/event.aspx?eventid=90015 - https://www.cisa.gov/uscert/ncas/alerts/aa22-321a - https://www.microsoft.com/en-us/security/blog/2024/01/17/new-ttps-observed-in-mint-sandstorm-campaign-targeting-high-profile-individuals-at-universities-and-research-orgs/ author: Florian Roth (Nextron Systems) date: 2022-08-24 modified: 2026-03-29 tags: - attack.stealth - attack.s0139 - attack.t1564.004 logsource: product: windows category: create_stream_hash detection: selection_domain: Contents|contains: - .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.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 - trycloudflare.com - ufile.io - w3spaces.com - workers.dev - x0.at selection_extension: TargetFilename|contains: - .bat:Zone - .cmd:Zone - .ps1:Zone condition: all of selection_* falsepositives: - Unknown level: medium
Near-miss passage: Sigma rule: Detects when an attacker tries to disable User Account Control (UAC) notification by tampering with the "UACDisableNotif. Logsource: windows / registry_set. Rule: title: UAC Notification Disabled id: c5f6a85d-b647-40f7-bbad-c10b66bab038 related: - id: 0d7ceeef-3539-4392-8953-3dc664912714 type: similar - id: 48437c39-9e5f-47fb-af95-3d663c3f2919 type: similar status: test description: 'Detects when an attacker tries to disable User Account Control (UAC) notification by tampering with the "UACDisableNotify" value. UAC is a critical security feature in Windows that prevents unauthorized changes to the operating system. It prompts the user for permission or an administrator password before allowing actions that could affect the system''s operation or change settings that affect other users. When "UACDisableNotify" is set to 1, UAC prompts are suppressed. ' references: - https://github.com/redcanaryco/atomic-red-team/blob/7e11e9b79583545f208a6dc3fa062f2ed443d999/atomics/T1548.002/T1548.002.md - https://securityintelligence.com/x-force/x-force-hive0129-targeting-financial-institutions-latam-banking-trojan/ author: frack113, Nasreddine Bencherchali (Nextron Systems) date: 2024-05-10 tags: - attack.privilege-escalation - attack.t1548.002 logsource: category: registry_set product: windows detection: selection: TargetObject|contains: \Microsoft\Security Center\UACDisableNotify Details: DWORD (0x00000001) condition: selection falsepositives: - Unknown level: medium