Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
434 detections
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Detects execution chains associated with the SideCopy threat group's ReverseRAT payload. The detection looks for mshta.exe being spawned by common shell processes (explorer, wscript, cmd, powershell) to execute remote HTA content or access 'docsportal.in'. It also monitors for subsequent reflective DLL loading via rundll32.exe or regsvr32.exe, which is indicative of the final ReverseRAT payload activation.
Detects the execution of mshta.exe with command-line arguments that reference VLC-themed filenames or presentations. This behavior is indicative of a malicious HTA file being used as a lure to drop the Lightlife RAT loader, leveraging the mshta.exe utility to bypass standard application execution controls.
Detects the execution of mshta.exe with suspicious command-line arguments that indicate the loading of remote HTML Applications (HTA) via URLs or inline scripts (javascript/vbscript). This behavior is often indicative of fileless malware execution and living-off-the-land techniques to bypass security controls.
Detects the execution of AutoIt3 scripts using mshta.exe as the parent process from suspicious or non-standard directories such as Temp, Downloads, or AppData. This behavior is indicative of an attempt to bypass application execution policies or obfuscate malicious script execution.
Detects execution chains where explorer.exe (acting as the Run dialog host) spawns suspicious processes like mshta.exe, powershell.exe, or cmd.exe with command lines containing URL indicators (http), common payload filenames (rtdx.dat), or specific IP address strings associated with known ClickFix social-engineering campaigns.
This rule detects instances where mshta.exe acts as a parent process to initiate powershell.exe. It specifically looks for command line arguments that employ obfuscation techniques, such as character casing variations (e.g., 'POWERsHeLl'), while simultaneously excluding standard casing, combined with flags typical of non-interactive execution (e.g., -NonInteractive or /w h /c). This pattern is commonly used by adversaries to bypass security controls and execute scripts hidden from user view.
Detects execution chains where explorer.exe (acting as the Run dialog host) spawns suspicious processes like mshta.exe, powershell.exe, or cmd.exe with command lines containing URL indicators (http), common payload filenames (rtdx.dat), or specific IP address strings associated with known ClickFix social-engineering campaigns.
Detects the execution of AutoIt3 scripts using mshta.exe as the parent process from suspicious or non-standard directories such as Temp, Downloads, or AppData. This behavior is indicative of an attempt to bypass application execution policies or obfuscate malicious script execution.
Detects the execution of AutoIt3 scripts using mshta.exe as the parent process from suspicious or non-standard directories such as Temp, Downloads, or AppData. This behavior is indicative of an attempt to bypass application execution policies or obfuscate malicious script execution.
Detects the execution of AutoIt3 scripts using mshta.exe as the parent process from suspicious or non-standard directories such as Temp, Downloads, or AppData. This behavior is indicative of an attempt to bypass application execution policies or obfuscate malicious script execution.
This rule detects the execution of mshta.exe with a command line referencing an HTA file, followed within 10 minutes by a network connection initiated by mshta.exe to a remote URL containing .js or .xml extensions. This behavior is indicative of mshta.exe being used as a proxy to execute remote malicious payloads, a common technique for fileless malware execution and defense evasion.
Detects the execution of AutoIt3 scripts using mshta.exe as the parent process from suspicious or non-standard directories such as Temp, Downloads, or AppData. This behavior is indicative of an attempt to bypass application execution policies or obfuscate malicious script execution.
Detects suspicious execution of PowerShell or Mshta spawned from Explorer.exe. It looks for specific malicious indicators including references to known malicious domains, PowerShell encoding flags, hidden window arguments, or Mshta HTTP requests, which are common patterns for fileless malware or dropper execution.
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
Detects a sequence of events where a user visits a Cloudflare Pages URL (*.pages.dev) and shortly after, a suspicious command (mshta, powershell, or curl) is executed. This pattern is consistent with the UNC5142 threat actor's TTP of using social engineering lures hosted on Cloudflare Pages to trick users into running malicious commands.
Detects modifications or creation of InprocServer32 COM registry keys by suspicious processes like mshta.exe or powershell.exe, which is indicative of COM Hijacking for persistence or privilege escalation.
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
Detects a sequence of events where a user visits a Cloudflare Pages URL (*.pages.dev) and shortly after, a suspicious command (mshta, powershell, or curl) is executed. This pattern is consistent with the UNC5142 threat actor's TTP of using social engineering lures hosted on Cloudflare Pages to trick users into running malicious commands.
This rule detects the use of 'mshta.exe' to execute a file from a remote location by inspecting the command line for 'http' protocols and a specific suspicious domain. Adversaries often abuse mshta.exe to proxy the execution of malicious HTML Application (HTA) files or scripts to bypass security controls.
This rule detects the use of 'mshta.exe' to execute a file from a remote location by inspecting the command line for 'http' protocols and a specific suspicious domain. Adversaries often abuse mshta.exe to proxy the execution of malicious HTML Application (HTA) files or scripts to bypass security controls.
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
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