Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

835 detections

Detects msdt.exe executed by a suspicious parent as seen in CVE-2022-30190 / Follina exploitation
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects the use of rcedit to potentially alter executable PE metadata properties, which could conceal efforts to rename system utilities for defense evasion.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects a renamed "dctask64.exe" execution, a signed binary by ZOHO Corporation part of ManageEngine Endpoint Central.
This binary can be abused for DLL injection, arbitrary command and process execution.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects the execution of a renamed version of the Plink binary
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects the presence of unicode characters which are homoglyphs, or identical in appearance, to ASCII letter characters.
This is used as an obfuscation and masquerading techniques. Only "perfect" homoglyphs are included; these are characters that
are indistinguishable from ASCII characters and thus may make excellent candidates for homoglyph attack characters.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects suspicious parent processes that should not have any children or should only have a single possible child program
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects uses of the SysInternals ProcDump utility in which ProcDump or its output get renamed, or a dump file is moved or copied to a different name
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects the creation of taskmgr.exe process in context of LOCAL_SYSTEM
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects execution of "WerFault.exe" with the "-pr" commandline flag that is used to run files stored in the ReflectDebugger key which could be used to store the path to the malware in order to masquerade the execution flow
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
Detects suspicious Windows Update Agent activity in which a wuauclt.exe process command line doesn't contain any command line flags
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
6 months ago
000
This rule detects the execution of AnyDesk from suspicious file paths that are not typically used for legitimate installations of remote access software. It identifies attempts to masquerade AnyDesk by placing it in system-like directories (e.g., Themes, Startup folders, Temp, or AppData subfolders with masquerading names) and also flags elevated executions (SYSTEM account) or service installations from these suspicious locations. The rule specifically excludes legitimate AnyDesk per-user installation paths to reduce false positives.
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F S@Fsdr
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Detections.ai Community
7 months ago
260369
This detection identifies potential process masquerading where a binary’s original file name metadata is wt.exe (Windows Terminal), but the actual running process name differs.

Adversaries often tamper with PE metadata or rename binaries to evade detection and blend into legitimate processes. In this case, attackers may:

- Modify the OriginalFileName field in the PE header to wt.exe
- Execute a malicious binary under a different filename
- Attempt to bypass allowlists or detection logic relying on trusted binaries like Windows Terminal

This detection flags inconsistencies between:

actor_process_image_name (actual process name)
actor_process_file_original_name (PE metadata)
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Hrushikesh Badgujar@H3AD
XQL - Cortex Detections
7 months ago
601,539
Detects the creation of hidden temporary workflow files (e.g., .prt_tmp_<nonce>.yml) indicative of the prt-scan supply chain campaign's DISPATCH phase used to capture secret values. This rule specifically looks for newly written script files with a filename matching the pattern /.github/workflows/.prt_tmp_[a-f0-9]+\.yml$/i.
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Elgonad .@elgonad
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Detections.ai Community
7 months ago
30120
This detection identifies potential process masquerading where a binary’s original file name metadata is wt.exe (Windows Terminal), but the actual running process name differs.

Adversaries often tamper with PE metadata or rename binaries to evade detection and blend into legitimate processes. In this case, attackers may:

- Modify the OriginalFileName field in the PE header to wt.exe
- Execute a malicious binary under a different filename
- Attempt to bypass allowlists or detection logic relying on trusted binaries like Windows Terminal

This detection flags inconsistencies between:

actor_process_image_name (actual process name)
actor_process_file_original_name (PE metadata)
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Hrushikesh Badgujar@H3AD
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Detections.ai Community
7 months ago
1076
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detections.ai Community
7 months ago
261384
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detections.ai Community
7 months ago
60194
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detections.ai Community
7 months ago
30159
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detections.ai Community
7 months ago
100163
This rule detects suspicious activity involving the writing of both DLL and EXE files to the same path, followed by process masquerading (where the file name differs from the original file name) and subsequent DLL side-loading. It also attempts to identify the source URL if the Mark-of-the-Web (MOTW) is present, indicating a downloaded file. The detection chain tracks the process that writes the files, the parent process that initiates the file write, the process that performs the DLL side-load, and finally the loaded DLLs themselves, including various module load telemetry classifications.
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Aamir Muhammad@Aamir
CrowdStrike Logscale
7 months ago
163153
This rule detects suspicious network connections to api.telegram.org from processes masquerading as legitimate Windows executables (MicDriver.exe, Winappx.exe, MsCache.exe, RuntimeSSH.exe, smqdservice.exe). It also identifies files with MD5 hashes matching known Indicators of Compromise (IOCs) from an external list. This combination suggests potential malware activity, possibly involving Telegram for command and control or data exfiltration, combined with process masquerading for evasion.
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Steven Lim@KQLWizard
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SlimKQL 2026
7 months ago
541433
This rule detects unusual network connections from processes to legitimate service endpoints that are commonly abused for Command and Control (C2) activities (LOLC2). It specifically looks for connections to services like Telegram, Slack, Discord, GitHub, Google APIs, Pastebin, Dropbox, and others, originating from processes that are not recognized as legitimate applications for those services, and not from common system processes or standard program file paths. This helps identify potential adversary communication channels masquerading as legitimate traffic.
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F S@Fsdr
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Detection & Hunting Community
7 months ago
230224
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