Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects file creation, copy, or rename operations within known VPN application directories (CyberGhost, ExpressVPN, NordVPN) when initiated by Chromium Embedded Framework (CEF) related processes (CefSharp.BrowsersSubprocess). This behavior is highly irregular as standard web browser components should not be modifying the local configuration or installation directories of VPN software.
Detects file creations (images), image loads, and process execution activity originating from or related to the 'SCef.WindowsAdapter' directory. This directory is often associated with specific third-party application behaviors and should be monitored for potential anomalous execution or staging of suspicious files.
Detects Hannibal Stealer reconnaissance activity involving the creation of a 'config.json' file within the 'SCef.WindowsAdapter' directory, correlated with suspicious process executions attempting to enumerate system information via 'GetComputerNameEx' or 'GetAdaptersInfo' API calls.
Detects access, copying, or creation of files within common cryptocurrency wallet directories, as well as registry lookups related to Bitcoin data directories. This behavior is often indicative of info-stealing malware or an adversary attempting to exfiltrate digital currency assets from a compromised host.
This rule detects malicious activity associated with Kimsuky JSE loaders, which leverage XML DOM manipulation (e.g., bin.base64) and ADODB.Stream components to decode and drop base64-encoded payloads into the ProgramData directory. It further monitors for subsequent decoding attempts using certutil and the presence of specific, suspicious file extensions (e.g., .a9oc, .lpXD, .lpxQ) often used by this threat actor.
Detects the creation of multiple executable files (.exe or .dll) within a 6-hour window in non-standard directories (outside of Windows or Program Files). The rule identifies scenarios where a single filename has three or more distinct SHA256 hashes associated with it on a specific device, which may indicate iterative malware delivery, obfuscation techniques, or persistence mechanism testing.
AD Explorer Creates a Directory Snapshot
Cortex XDR
Detects AD Explorer running with the snapshot option and writing result.dat into a temporary directory. This activity is often associated with reconnaissance and credential dumping in Active Directory environments.
Detects a game launcher writing a new executable beneath AppData or the user profile, which is unusual for signed platform updates and may represent RokRAT or BirdCall staging. This rule specifically looks for file creation events where the file is an executable (.exe), the path is within a user's AppData, Documents, or Downloads folder, and the creating process is identified as a game, launcher, update, or patch executable.
This rule detects executable files being created or launched within the 'AppData\Local\Programs' directory by a temporary-stage process. This behavior is often indicative of malware attempting to establish persistence or execute from a user-specific location, leveraging temporary directories for initial execution or staging.
This rule detects various stages of a cryptojacking campaign, as described by Microsoft, involving initial access via autorun.dll sideloading, silent MSI installations, execution of RuntimeHost.exe from suspicious locations, scheduled task creation for persistence, .NET process hollowing, Windows Defender exclusions, and persistence via Startup folder shortcuts and Registry Run keys. The campaign leverages ScreenConnect for remote access and .NET utilities for process hollowing, ultimately leading to GPU mining cryptojacking.
This rule detects the creation of an SVG file in common user-writable/temporary directories, followed closely (within 60 seconds) by the execution of common scripting interpreters (cmd.exe, powershell.exe, wscript.exe) by a web browser. This behavior is often associated with browser-based exploitation or malicious file downloads where an attacker uses an SVG or accompanying file to trigger secondary malicious processes.
This rule correlates multiple low-to-medium confidence signals across file, process, network, and registry events to detect potential ransomware activity. The rule identifies suspicious behaviors including mass file renames, creation of known ransom note file types in multiple directories, shadow copy deletion via system utilities, disabling of antivirus and security monitoring, large archive staging, unauthorized outbound network connections, and suspicious process injection. Alerts are generated based on the aggregation and frequency of these signals, indicating a high probability of ransomware-related malicious activity.
Detection rule monitoring for indicators of compromise related to SolarWinds Serv-U, including anomalous Content-Encoding headers, unexpected child process execution, large file staging indicative of data exfiltration (Cl0p-style), outbound exfiltration, SQL injection artifacts, and unauthorized LDAP/Active Directory object enumeration by the Serv-U process.
This rule detects suspicious command-line activity involving 'cmd.exe' that echoes content into a batch file within the 'C:\Windows\TEMP\' directory and subsequently deletes it. This pattern can be indicative of various malicious activities, including temporary file creation for execution, evasion, or cleanup after execution.
Lightweight remote access trojan deployed in recruiter-themed social engineering
Stealthy backdoor MLTBackdoor linked to KongTuke ClickFix and ModeloRAT campaigns
Rust-based macOS infostealer implant embedding prompt injection payloads
Latin American banking trojan using DLL side-loading and overlay attacks
Form-grabbing and credential stealing malware-as-a-service
Fraud framework powering scam domains for crypto and gambling schemes
Fraud framework powering scam domains for crypto and gambling schemes
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