Query: write Sigma for Detects an initiated network connection by a non browser process on the system to "azurewebsites.net". The latter was of
Matching passage: Sigma rule: Detects an initiated network connection by a non browser process on the system to "azurewebsites.net". The latter was of. Logsource: windows / network_connection. Rule: title: Network Connection Initiated To AzureWebsites.NET By Non-Browser Process id: 5c80b618-0dbb-46e6-acbb-03d90bcb6d83 related: - id: e043f529-8514-4205-8ab0-7f7d2927b400 type: derived status: test description: 'Detects an initiated network connection by a non browser process on the system to "azurewebsites.net". The latter was often used by threat actors as a malware hosting and exfiltration site. ' references: - https://www.sentinelone.com/labs/wip26-espionage-threat-actors-abuse-cloud-infrastructure-in-targeted-telco-attacks/ - https://symantec-enterprise-blogs.security.com/threat-intelligence/harvester-new-apt-attacks-asia - https://www.ptsecurity.com/ww-en/analytics/pt-esc-threat-intelligence/higaisa-or-winnti-apt-41-backdoors-old-and-new/ - https://intezer.com/blog/research/how-we-escaped-docker-in-azure-functions/ author: Nasreddine Bencherchali (Nextron Systems) date: 2024-06-24 modified: 2024-07-16 tags: - attack.command-and-control - attack.t1102 - attack.t1102.001 logsource: category: network_connection product: windows detection: selection: Initiated: 'true' DestinationHostname|endswith: azurewebsites.net filter_main_chrome: Image: - C:\Program Files\Google\Chrome\Application\chrome.exe - C:\Program Files (x86)\Google\Chrome\Application\chrome.exe filter_main_chrome_appdata: Image|startswith: C:\Users\ Image|endswith: \AppData\Local\Google\Chrome\Application\chrome.exe filter_main_firefox: Image: - C:\Program Files\Mozilla Firefox\firefox.exe - C:\Program Files (x86)\Mozilla Firefox\firefox.exe filter_main_firefox_appdata: Image|startswith: C:\Users\ Image|endswith: \AppData\Local\Mozilla Firefox\firefox.exe filter_main_ie: Image: - C:\Program Files (x86)\Internet Explorer\iexplore.exe - C:\Program Files\Internet Explorer\iexplore.exe filter_main_edge_1: - Image|startswith: C:\Program Files (x86)\Microsoft\EdgeWebView\Application\ - Image|endswith: \WindowsApps\MicrosoftEdge.exe - Image: - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe - C:\Program Files\Microsoft\Edge\Application\msedge.exe filter_main_edge_2: Image|startswith: - C:\Program Files (x86)\Microsoft\EdgeCore\ - C:\Program Files\Microsoft\EdgeCore\ Image|endswith: - \msedge.exe - \msedgewebview2.exe filter_main_safari: Image|contains: - C:\Program Files (x86)\Safari\ - C:\Program Files\Safari\ Image|endswith: \safari.exe filter_main_defender: Image|contains: - C:\Program Files\Windows Defender Advanced Threat Protection\ - C:\Program Files\Windows Defender\ - C:\Pro
Near-miss passage: Sigma rule: Detect PetitPotam coerced authentication activity.. Logsource: windows / security. Rule: title: Possible PetitPotam Coerce Authentication Attempt id: 1ce8c8a3-2723-48ed-8246-906ac91061a6 status: test description: Detect PetitPotam coerced authentication activity. references: - https://github.com/topotam/PetitPotam - https://github.com/splunk/security_content/blob/0dd6de32de2118b2818550df9e65255f4109a56d/detections/endpoint/petitpotam_network_share_access_request.yml author: Mauricio Velazco, Michael Haag date: 2021-09-02 modified: 2022-08-11 tags: - attack.credential-access - attack.t1187 logsource: product: windows service: security definition: The advanced audit policy setting "Object Access > Detailed File Share" must be configured for Success/Failure detection: selection: EventID: 5145 ShareName|startswith: \\\\ ShareName|endswith: \IPC$ RelativeTargetName: lsarpc SubjectUserName: ANONYMOUS LOGON condition: selection falsepositives: - Unknown. Feedback welcomed. level: high