Detections

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

114 detections

Detects browser cache smuggling (ClickFix/FileFix delivery mechanisms) where a non-browser script interpreter or LOLBin accesses a browser HTTP-cache directory and writes an executable or script payload outside the cache, followed shortly by the execution of a payload from a user staging directory.
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Tim Peck@timpeck
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Detections.ai Community
15 days ago
901547
Detects observable hiding actions targeting ScreenConnect (ConnectWise Control) clients, such as modifying registry keys to hide uninstall entries, using attrib.exe to set hidden attributes, or launching management tools with hidden window styles.
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ills3c Intel&Coffee@Ills3C
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Detections.ai Community
8 days ago
11018
Detects a shell command referencing a hidden, octal/self-deleting payload
file written to a VMFS datastore volume using a '.sys' filename prefix followed by a
numeric timestamp, combined with an 'rm -f' cleanup of the same file. CrowdStrike observed
this VMFS staging technique used to blend a decoded payload in with legitimate system files
before it is executed and then removed as an anti-forensics step, denying incident
responders a copy of the payload from disk.
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Georg Lauenstein@gsec
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SecOps Signals
18 days ago
001
Detects the creation of hard links using 'mklink /H' targeting specific paths in ProgramData or linking to specific executable paths in AppData. This behavior is often indicative of adversaries attempting to perform file system manipulation for persistence, defense evasion, or masquerading.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
004
Detects the creation of files within the 'SystemFolder32' or 'System Folder32' directory under the user's Local AppData path, a known behavioral pattern for payload staging used by the Transparent Tribe threat actor.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
003
Detects the creation of hard links using 'mklink /H' targeting specific paths in ProgramData or linking to specific executable paths in AppData. This behavior is often indicative of adversaries attempting to perform file system manipulation for persistence, defense evasion, or masquerading.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
003
Detects the creation or renaming of files within the '\ProgramData\doxc' directory, and correlates this with the execution of 'mklink /H' commands that point to that directory. This behavior is indicative of an adversary establishing persistence or hiding files by creating hard links.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects the creation or renaming of files within the '\ProgramData\doxc' directory, and correlates this with the execution of 'mklink /H' commands that point to that directory. This behavior is indicative of an adversary establishing persistence or hiding files by creating hard links.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects the creation of hard links on a Windows system using utilities such as mklink or fsutil. Specifically, this rule identifies scenarios where a malicious executable located in %APPDATA% is linked to a backdoor binary stored in C:\ProgramData\, a technique used by adversaries to mask the true file path and evade security controls or detection mechanisms.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
201
Detects files referencing malicious implant install paths under C:\Windows\Fonts\web used to blend with legitimate system files
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
004
Detects files referencing malicious implant install paths under C:\Windows\Fonts\web used to blend with legitimate system files
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects files referencing malicious implant install paths under C:\Windows\Fonts\web used to blend with legitimate system files
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
Detects potential anti-forensic activities performed by malware, specifically the use of 'attrib.exe' to hide files and 'cmd.exe' with 'del /f /q' to forcibly remove dropped payloads. These actions are common indicators of a cleanup phase in a malware lifecycle to hinder analysis.
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Subhankar H@Andrewsec57
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Detections.ai Community
2 months ago
004
Detects creation or modification of files under hidden, Apple-mimicking Application Support directories (.com.apple.accountsd, .com.apple.metadata.mds) that back a masquerading LaunchAgent -- the persistence mechanism AMOS stealer uses to survive reboot as AccountsHelper/mdworker_shared.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
1010
Detects creation of a new Microsoft Edge browser profile with a non-default, non-standard-numbered name, followed within 5 minutes by creation of files/folders containing "extension" or "native" under that profile's User Data path — consistent with the Edgecution malicious Edge extension backdoor installation flow.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
305
Detects STAC4749 persistence mechanisms including Run key values disguised as Realtek or WinAudio audio components, mklink-%.vbs scripts used to create Startup folder shortcuts, and hidden Startup folder .lnk files disguised as SecurityHealth or OneDriveUpdate.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
008
Detects STAC4749 persistence mechanisms including Run key values disguised as Realtek or WinAudio audio components, mklink-%.vbs scripts used to create Startup folder shortcuts, and hidden Startup folder .lnk files disguised as SecurityHealth or OneDriveUpdate.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
006
Detects STAC4749 persistence mechanisms including Run key values disguised as Realtek or WinAudio audio components, mklink-%.vbs scripts used to create Startup folder shortcuts, and hidden Startup folder .lnk files disguised as SecurityHealth or OneDriveUpdate.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
001
Detects the mrmustard stealer's compiled-bytecode artifacts (hw_probe.pyc, .lock_*, .ts_*) dropped in the hidden .tf_cache directory used to evade static source-code review.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
005
Detects the mrmustard stealer's compiled-bytecode artifacts (hw_probe.pyc, .lock_*, .ts_*) dropped in the hidden .tf_cache directory used to evade static source-code review.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
000
Detects the use of the Windows 'attrib.exe' utility to hide a file named 'svehost.exe' within the 'AppData\Windows' directory. This behavior is indicative of an adversary attempting to conceal malicious artifacts or persistence mechanisms from the user and basic system exploration tools.
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Duo Tech@duotech
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Detections.ai Community
4 months ago
7121
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