Windows Rasautou DLL Execution
The following analytic detects the execution of an arbitrary DLL by the Windows Remote Auto Dialer (rasautou.exe). This behavior is identified by analyzing process creation events where rasautou.exe is executed with…
Description
The following analytic detects the execution of an arbitrary DLL by the Windows Remote Auto Dialer (rasautou.exe). This behavior is identified by analyzing process creation events where rasautou.exe is executed with specific command-line arguments. This activity is significant because it leverages a Living Off The Land Binary (LOLBin) to execute potentially malicious code, bypassing traditional security controls. If confirmed malicious, this technique could allow an attacker to execute arbitrary code, potentially leading to system compromise, privilege escalation, or persistent access within the environment.
Detection logic
Detection requirements
- Platform
- LinuxmacOSWindows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
- Log source category
- crowdstrike_processrollup2sysmon_eventid_1windows_event_log_security_4688
Known benign triggers
- False positives will be limited to applications that require Rasautou.exe to load a DLL from disk. Filter as needed.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
| Reference | Cited by |
|---|---|
| gist.github.com/NickTyrer/c6043e4b302d5424f701f15baf136513 | Only this detection cites it |
| github.com/MHaggis/notes/blob/master/utilities/Invoke-SPLDLLigence.ps1 | Only this detection cites it |
| github.com/mandiant/DueDLLigence | Only this detection cites it |
| www.mandiant.com/resources/staying-hidden-on-the-endpoint-evading-detection-with-shellcode | Only this detection cites it |
From the source
- At source
- Open at source
- Upstream identifier
- 6f42b8be-8e96-11ec-ad5a-acde48001122
- Tagged by the source as
- Compromised Windows HostHellcat RansomwareWindows Defense Evasion TacticsEndpointendpointSplunk CloudSplunk EnterpriseSplunk Enterprise Securityendpoint
Licence
- Published under
- Apache License 2.0Read the licence
- Attribution
- Required
- Obtained under
- Apache-2.0Read the origin licence
Authorship
- Written by
- Published
- Aug 26, 2026
- Version
- 1