Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects the use of specific tools associated with credential dumping and memory forensics, including Dokan driver installations for file system mounting, the use of DumpIt for creating memory dumps, and the subsequent analysis of these dumps using MemProcFS to access sensitive process memory information such as LSASS minidumps.
This rule detects potential attempts to tamper with or bypass Windows Defender by monitoring for files or processes named 'ShieldCrash' occurring in close temporal proximity to the creation or modification of files within Windows Defender's shadow or scan directories (BaseNamedObjects\Restricted\WD_SHADOW_ or WD_SCAN). This behavior is often associated with malware attempting to evade security detection.
Detects a sequence of suspicious activities associated with credential dumping and inhibiting system recovery. The rule tracks when a user account executes multiple commands related to volume shadow copies (vssadmin, rmdir, mklink) or attempts to copy sensitive registry files (SAM, SYSTEM, SECURITY) within a 15-minute window on the same device.
This rule monitors for network connections to known command-and-control (C2) domains or DGA-patterned domains (ending in .icu or .cfd), as well as the execution or file creation of files matching known malicious SHA256 hashes.
Detects the creation, modification, or renaming of files named '.passphrase' or '.txid' within user directories. These file names are indicative of potential sensitive credential or wallet-related data storage, which may be targeted by adversaries for credential theft or unauthorized access.
This rule detects the presence of files matching known SHA256 hashes associated with the GhostCode phishing kit. It monitors for these files both in email attachments and on local device filesystems to identify potential delivery and execution of malicious phishing payloads.
Detects the creation of Object Manager symbolic links that redirect the Windows Defender 'WD_SCAN' object to a loopback UNC share path. This behavior is indicative of a symlink exploitation technique (ShieldCrash/CVE-2026-69414) used to manipulate Windows Defender or associated scan operations by redirecting them to an adversary-controlled or loopback-hosted target.
This rule detects two distinct malicious activities: 1) The presence or execution of files with specific SHA1/SHA256 hashes known to be malicious, identified across file creation, process execution, or as initiating processes. 2) The forced installation of browser extensions in Google Chrome or Microsoft Edge by identifying modifications to the 'ExtensionInstallForcelist' registry key.
Detects execution of a specific suspicious executable file masquerading in the Windows Temp directory, coupled with the access of an associated .ini configuration file. This behavior is indicative of AsyncRAT deployment, often involving initial execution or staging of configuration files within volatile user directories.
Detects the use of native Windows utilities (vssadmin, wmic, wbadmin, bcdedit) to delete volume shadow copies, backup catalogs, or disable system recovery features. The rule further correlates this activity with preceding mass file activity to identify potential ransomware or destructive attack behavior.
This rule detects the execution of suspicious shortcut (.lnk) files or the use of command-line interpreters (cmd.exe, powershell.exe, wscript.exe, cscript.exe) to initiate processes related to specific, potentially malicious filenames often associated with phishing or social engineering campaigns. The rule monitors for these activities occurring in user-writable directories such as Downloads, Desktop, or Temp.
Detects file creation, renaming, or deletion events within the Recycle Bin directory involving suspicious filenames or PDF files, which may indicate an adversary attempting to hide, stage, or delete evidence.
Detects the execution of an executable named 'Windowsupdate.exe' located in non-standard user-writable directories (e.g., AppData\Local) when initiated by an FTP client process. This is a common pattern for malicious masquerading or persistence mechanisms.
Detects file creation, modification, or renaming activity within AppData directories associated with VPN clients (CyberGhost, NordVPN, ExpressVPN). This rule is intended to identify potential unauthorized access, staging, or tampering with VPN configuration files or credentials often stored in these application directories.
This rule detects instances where the DISM core library (DismCore.dll) is loaded by a process named 'index.exe', or where a process named 'index.exe' is executing from or interacting with a folder path containing 'DISM'. This behavior is characteristic of malicious tools or scripts attempting to proxy execution through the Deployment Image Servicing and Management (DISM) binary, a common technique for bypassing security controls.
Detects modifications, creation, or renaming of common cryptocurrency wallet files (e.g., wallet.dat, .wallet files) within known storage directories. This behavior is often associated with infostealers or malware attempting to exfiltrate or manipulate user financial assets.
Detects presence of configuration markers associated with the Hannibal Stealer 'clipper' functionality. These markers (e.g., 'cclipper', 'clipboard_check_delay') are used by the malware to monitor the system clipboard and replace cryptocurrency wallet addresses with attacker-controlled addresses.
Detects the on-disk presence of a malicious Firefox browser extension, 'pdf-para-texto@extensao.local', used for credential or data harvesting. The rule monitors for the creation of its manifest file or XPI package in specific directories, indicating the staging or installation of the malicious extension.
This rule monitors for known malicious file hashes, IP addresses, C2 domains, and specific URL markers associated with identified threat activity. It consolidates multiple detection vectors including file activity, process execution, network connections, and DNS queries to identify compromised devices communicating with attacker-controlled infrastructure.
This rule detects the execution, file presence, or driver loading associated with 'EDRKiller' and 'WarsawKiller', which are malicious tools used to terminate or disable endpoint security products.
Detects high volumes of file creations, modifications, or renames ending with a specific encrypted file extension (.df_win) occurring across multiple network (SMB) shares from a single host within a short timeframe. This behavior is indicative of ransomware activity where a compromised host attempts to encrypt files on accessible remote storage.
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