Query: detect Detects a potentially suspicious parent of "csc.exe", which could be a sign of payload delivery. in logs
Matching passage: Sigma rule: Detects a potentially suspicious parent of "csc.exe", which could be a sign of payload delivery.. Logsource: windows / process_creation. Rule: title: Csc.EXE Execution Form Potentially Suspicious Parent id: b730a276-6b63-41b8-bcf8-55930c8fc6ee status: test description: Detects a potentially suspicious parent of "csc.exe", which could be a sign of payload delivery. references: - https://www.uptycs.com/blog/warzonerat-can-now-evade-with-process-hollowing - https://reaqta.com/2017/11/short-journey-darkvnc/ - https://www.pwc.com/gx/en/issues/cybersecurity/cyber-threat-intelligence/yellow-liderc-ships-its-scripts-delivers-imaploader-malware.html author: Florian Roth (Nextron Systems), Nasreddine Bencherchali (Nextron Systems), X__Junior (Nextron Systems) date: 2019-02-11 modified: 2026-03-23 tags: - attack.execution - attack.stealth - attack.t1059.005 - attack.t1059.007 - attack.t1218.005 - attack.t1027.004 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \csc.exe - OriginalFileName: csc.exe selection_parent_generic: ParentImage|endswith: - \cscript.exe - \excel.exe - \mshta.exe - \onenote.exe - \outlook.exe - \powerpnt.exe - \winword.exe - \wscript.exe selection_parent_powershell: ParentImage|endswith: - \powershell.exe - \pwsh.exe ParentCommandLine|contains: - '-Encoded ' - FromBase64String selection_parent_susp_location: - ParentCommandLine|re: (?:[Pp]rogram[Dd]ata|%(?:[Ll]ocal)?[Aa]pp[Dd]ata%|\\[Aa]pp[Dd]ata\\(?:[Ll]ocal(?:[Ll]ow)?|[Rr]oaming))\\[^\\]{1,256}$ - ParentCommandLine|contains: - :\PerfLogs\ - :\Users\Public\ - :\Windows\Temp\ - \Temporary Internet - ParentCommandLine|contains|all: - :\Users\ - \Favorites\ - ParentCommandLine|contains|all: - :\Users\ - \Favourites\ - ParentCommandLine|contains|all: - :\Users\ - \Contacts\ - ParentCommandLine|contains|all: - :\Users\ - \Pictures\ filter_main_programfiles: ParentImage|startswith: - C:\Program Files (x86)\ - C:\Program Files\ filter_main_sdiagnhost: ParentImage: C:\Windows\System32\sdiagnhost.exe filter_main_w3p: ParentImage: C:\Windows\System32\inetsrv\w3wp.exe filter_optional_chocolatey: ParentImage: C:\ProgramData\chocolatey\choco.exe filter_optional_defender: ParentCommandLine|contains: \ProgramData\Microsoft\Windows Defender Advanced Threat Protection filter_optional_ansible: ParentCommandLine|contains: - JwB7ACIAZgBhAGkAbABlAGQAIgA6AHQAcgB1AGUALAAiAG0AcwBnACIAOgAiAEEAbgBzAGkAYgBsAGUAIAByAGUAcQB1AGkAcgBlAHMAIABQAG8AdwBlAHIAUwBoAGUAbABsACAAdgAzAC4AMAAgAG8AcgAgAG4AZQB3AGUAcgAiAH0AJw - cAewAiAGYAYQBpAGwAZQBkACIAOgB0AHIAdQBlACwAIgBtAHMAZwAiADoAIgBBAG4AcwBpAGIAbABlACAAcgBlAHEAdQBpAHIAZQBzAC
Near-miss passage: Sigma rule: Detects NetNTLM downgrade attack. Logsource: windows / registry_event. Rule: title: NetNTLM Downgrade Attack - Registry id: d67572a0-e2ec-45d6-b8db-c100d14b8ef2 status: test description: Detects NetNTLM downgrade attack references: - https://web.archive.org/web/20171113231705/https://www.optiv.com/blog/post-exploitation-using-netntlm-downgrade-attacks - https://www.ultimatewindowssecurity.com/wiki/page.aspx?spid=NSrpcservers author: Florian Roth (Nextron Systems), wagga, Nasreddine Bencherchali (Splunk STRT) date: 2018-03-20 modified: 2024-12-03 tags: - attack.persistence - attack.defense-impairment - attack.t1685 - attack.t1112 logsource: product: windows category: registry_event detection: selection_regkey: TargetObject|contains|all: - SYSTEM\ - ControlSet - \Control\Lsa selection_value_lmcompatibilitylevel: TargetObject|endswith: \lmcompatibilitylevel Details: - DWORD (0x00000000) - DWORD (0x00000001) - DWORD (0x00000002) selection_value_ntlmminclientsec: TargetObject|endswith: \NtlmMinClientSec Details: - DWORD (0x00000000) - DWORD (0x00000010) - DWORD (0x00000020) - DWORD (0x00000030) selection_value_restrictsendingntlmtraffic: TargetObject|endswith: \RestrictSendingNTLMTraffic condition: selection_regkey and 1 of selection_value_* falsepositives: - Services or tools that set the values to more restrictive values level: high