Query: detect Detects PAExec default named pipe in logs
Matching passage: Sigma rule: Detects PAExec default named pipe. Logsource: windows / pipe_created. Rule: title: PUA - PAExec Default Named Pipe id: f6451de4-df0a-41fa-8d72-b39f54a08db5 status: test description: Detects PAExec default named pipe references: - https://github.com/microsoft/Microsoft-365-Defender-Hunting-Queries/blob/efa17a600b43c897b4b7463cc8541daa1987eeb4/Command%20and%20Control/C2-NamedPipe.md - https://github.com/poweradminllc/PAExec author: Nasreddine Bencherchali (Nextron Systems) date: 2022-10-26 tags: - attack.execution - attack.t1569.002 logsource: category: pipe_created product: windows definition: Note that you have to configure logging for Named Pipe Events in Sysmon config (Event ID 17 and Event ID 18). The basic configuration is in popular sysmon configuration (https://github.com/SwiftOnSecurity/sysmon-config), but it is worth verifying. You can also use other repo, e.g. https://github.com/Neo23x0/sysmon-config, https://github.com/olafhartong/sysmon-modular. How to test detection? You can check powershell script from this site https://svch0st.medium.com/guide-to-named-pipes-and-hunting-for-cobalt-strike-pipes-dc46b2c5f575 detection: selection: PipeName|startswith: \PAExec condition: selection falsepositives: - Unknown level: medium
Near-miss passage: Sigma rule: Detects a suspicious copy operation that tries to copy a known LOLBIN from system (System32, SysWOW64, WinSxS) directori. Logsource: windows / process_creation. Rule: title: LOL-Binary Copied From System Directory id: f5d19838-41b5-476c-98d8-ba8af4929ee2 related: - id: fff9d2b7-e11c-4a69-93d3-40ef66189767 type: derived status: test description: 'Detects a suspicious copy operation that tries to copy a known LOLBIN from system (System32, SysWOW64, WinSxS) directories to another on disk in order to bypass detections based on locations. ' references: - https://www.hybrid-analysis.com/sample/8da5b75b6380a41eee3a399c43dfe0d99eeefaa1fd21027a07b1ecaa4cd96fdd?environmentId=120 - https://web.archive.org/web/20180331144337/https://www.fireeye.com/blog/threat-research/2018/03/sanny-malware-delivery-method-updated-in-recently-observed-attacks.html - https://thedfirreport.com/2023/08/28/html-smuggling-leads-to-domain-wide-ransomware/ - https://www.virustotal.com/gui/file/14e722855605ba78dc1d21153f0e1be90e7528149f2cd2d7d6eba8ef27534bdc/behavior author: Nasreddine Bencherchali (Nextron Systems) date: 2023-08-29 modified: 2025-11-27 tags: - attack.stealth - attack.t1036.003 logsource: category: process_creation product: windows detection: selection_tools_cmd: Image|endswith: \cmd.exe CommandLine|contains: 'copy ' selection_tools_pwsh: Image|endswith: - \powershell.exe - \pwsh.exe CommandLine|contains: - copy-item - ' copy ' - 'cpi ' - ' cp ' selection_tools_other: - Image|endswith: - \robocopy.exe - \xcopy.exe - OriginalFileName: - robocopy.exe - XCOPY.EXE selection_target_path: CommandLine|contains: - \System32 - \SysWOW64 - \WinSxS selection_target_lolbin: CommandLine|contains: - \bitsadmin.exe - \calc.exe - \certutil.exe - \cmdl32.exe - \cscript.exe - \mshta.exe - \rundll32.exe - \wscript.exe - \ie4uinit.exe condition: 1 of selection_tools_* and all of selection_target_* falsepositives: - Unknown level: high