Ibrahim Saud
@tektrixIndiaCompletionist
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Detects the creation of files associated with Psychedelic Stealer's persistence mechanism. The malware establishes persistence by installing a malicious native messaging host configuration file (com.lunex.explorer.json) and associated malicious scripts (host.ps1 or host.bat), which allows it to intercept and manipulate web browser native messaging.
Detects the creation of files associated with Psychedelic Stealer's persistence mechanism. The malware establishes persistence by installing a malicious native messaging host configuration file (com.lunex.explorer.json) and associated malicious scripts (host.ps1 or host.bat), which allows it to intercept and manipulate web browser native messaging.
Detects the use of PowerShell with a hidden window ('-w hidden') to execute the 'Add-MpPreference' cmdlet to configure Windows Defender exclusions. This combination is often indicative of malicious activity, such as attempting to bypass security controls stealthily following a UAC bypass or initial access.
This rule detects the creation of a scheduled task named 'psychedelicloveUtils' on Windows systems. This specific task name is associated with the persistence mechanism of the Psychedelic Stealer malware. The detection leverages command-line monitoring for the task creation request and identifies related file-system modifications in the Windows task registry structure.
Detects suspicious execution patterns involving msiexec where a PowerShell process launches or is the parent of an MSI installation occurring from the %TEMP% directory with a GUID-based filename, or when msiexec executes an application from within %AppData%\Local\Programs. This pattern is often associated with fileless malware, ClickFix-style social engineering attacks, or suspicious persistence/installation behavior.
This rule detects the creation of a file within the SysWOW64 directory followed by an immediate modification or creation of a Windows Run registry key within a 10-minute window. This behavior is indicative of a persistence mechanism where a malicious file is dropped to a system directory and registered for execution at system startup or user logon.
Detects a specific behavioral chain associated with the CHOSEN BRICK implant. This rule identifies when a suspected malicious process writes image/screenshot files (.png, .jpg, .bmp) to disk, followed by a network connection to the Telegram Bot API within a 15-minute window, suggesting potential data exfiltration.
Detects execution of the CHOSEN BRICK implant (process names smdqservice.exe or winappx.exe) initiating a network connection to Telegram infrastructure (C2) followed by a network connection to a cloud object-storage provider (vultrobjects.com, storjshare.io, or backblazeb2.com) for data exfiltration within a 30-minute window.
Detects the creation of specific named mutexes used by the CHOSEN BRICK malware. The malware utilizes these mutexes as an execution guardrail to ensure only one instance of the infection persists on a host. Identification of these mutexes is a high-confidence indicator of CHOSEN BRICK infection activity, often accompanying persistence via Registry Run keys and subsequent communication with Telegram-based command and control servers.
Detects malicious software bundles consistent with the Contagious Interview (G1052) threat group's multi-stage infection chain. The rule identifies the presence of multiple malware family identifiers (such as BeaverTail, InvisibleFerret, and others) within the context of npm or VS Code task configuration files, which are commonly used in job-assessment themed social engineering campaigns.
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