Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects potential exploitation of remote code execution vulnerability CVE-2025-33053
which involves unauthorized code execution via WebDAV through external control of file names or paths.
The exploit abuses legitimate utilities like iediagcmd.exe or CustomShellHost.exe by manipulating
their working directories to point to attacker-controlled WebDAV servers, causing them to execute
malicious executables (like route.exe) from the WebDAV path instead of legitimate system binaries
through Process.Start() search order manipulation.
which involves unauthorized code execution via WebDAV through external control of file names or paths.
The exploit abuses legitimate utilities like iediagcmd.exe or CustomShellHost.exe by manipulating
their working directories to point to attacker-controlled WebDAV servers, causing them to execute
malicious executables (like route.exe) from the WebDAV path instead of legitimate system binaries
through Process.Start() search order manipulation.
Detects uncommon or suspicious child processes spawning from a WSL process. This could indicate an attempt to evade parent/child relationship detections or persistence attempts via cron using WSL
Detects the usage of the "Squirrel.exe" to download arbitrary files. This binary is part of multiple Electron based software installations (Slack, Teams, Discord, etc.)
Adversaries may log user keystrokes to intercept credentials as the user types them.
Detects execution of the AgentExecutor.exe binary. Which can be abused as a LOLBIN to execute powershell scripts with the ExecutionPolicy "Bypass" or any binary named "powershell.exe" located in the path provided by 6th positional argument
Detects execution of the Add-In deployment cache updating utility (AddInutil.exe) with suspicious Addinroot or Pipelineroot paths. An adversary may execute AddinUtil.exe with uncommon Addinroot/Pipelineroot paths that point to the adversaries Addins.Store payload.
Detects process injection using the signed Windows tool Mavinject32.exe
Detects the execution of a renamed version of the "Mavinject" process. Which can be abused to perform process injection using the "/INJECTRUNNING" flag
Detects execution of the "mofcomp" utility as a child of a suspicious shell or script running utility or by having a suspicious path in the commandline.
The "mofcomp" utility parses a file containing MOF statements and adds the classes and class instances defined in the file to the WMI repository.
Attackers abuse this utility to install malicious MOF scripts
The "mofcomp" utility parses a file containing MOF statements and adds the classes and class instances defined in the file to the WMI repository.
Attackers abuse this utility to install malicious MOF scripts
Detects use of .NET InstallUtil.exe in order to download arbitrary files. The files will be written to "%LOCALAPPDATA%\Microsoft\Windows\INetCache\IE\"
Detects the expansion or decompression of cabinet files from potentially suspicious or uncommon locations, e.g. seen in Iranian MeteorExpress related attacks
Detects the start of a non built-in assistive technology applications via "Atbroker.EXE".
Detects a network connection initiated by the Add-In deployment cache updating utility "AddInutil.exe".
This could indicate a potential command and control communication as this tool doesn't usually initiate network activity.
This could indicate a potential command and control communication as this tool doesn't usually initiate network activity.
Gpscript Execution
Sigma
Detects the execution of the LOLBIN gpscript, which executes logon or startup scripts configured in Group Policy
Detects execution of "findstr" with specific flags and a remote share path. This specific set of CLI flags would allow "findstr" to download the content of the file located on the remote share as described in the LOLBAS entry.
Detects the use of stordiag.exe to execute schtasks.exe systeminfo.exe and fltmc.exe
Detects potential exploitation of remote code execution vulnerability CVE-2025-33053
by looking for process access that involves legitimate Windows executables (iediagcmd.exe, CustomShellHost.exe)
accessing suspicious executables hosted on WebDAV shares. This indicates an attacker may be exploiting
Process.Start() search order manipulation to execute malicious code from attacker-controlled WebDAV servers
instead of legitimate system binaries. The vulnerability allows unauthorized code execution through
external control of file names or paths via WebDAV.
by looking for process access that involves legitimate Windows executables (iediagcmd.exe, CustomShellHost.exe)
accessing suspicious executables hosted on WebDAV shares. This indicates an attacker may be exploiting
Process.Start() search order manipulation to execute malicious code from attacker-controlled WebDAV servers
instead of legitimate system binaries. The vulnerability allows unauthorized code execution through
external control of file names or paths via WebDAV.
Detects execution of findstr with the "s" and "i" flags for a "subfolder" and "insensitive" search respectively. Attackers sometimes leverage this built-in utility to search the system for interesting files or filter through results of commands.
Detects suspicious child processes of "provlaunch.exe" which might indicate potential abuse to proxy execution.
Detects process injection using the signed Windows tool "Mavinject" via the "INJECTRUNNING" flag
Detects a suspicious child process of a Microsoft HTML Help (HH.exe)
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