Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects credential harvesting portals from evil twin Wi-Fi access points
Detects keylogging behavior associated with the TrymeLocker malware. The rule monitors for processes executing from non-standard, potentially writable directories (such as Temp, AppData, or ProgramData) that load user32.dll. This activity is indicative of an attempt to install a global Windows hook (SetWindowsHookEx) to intercept keystrokes (WH_KEYBOARD_LL).
AD Snapshot Is Compressed with 7zr
Cortex XDR
Detects the use of 7-Zip (7zr.exe) to compress Active Directory snapshot files (result.dat or snapshot) into an archive with a specific compression level (-mx=5). This activity could indicate an adversary staging data for exfiltration.
Detects execution of 7za.exe with specific command line arguments containing 'Avast', 'data2.bin', and a specific numeric password string, which indicates potential staging or archiving of data, possibly related to malware behavior.
Detects file creation events matching the specific staging directory and filename pattern (evo_*/stolen.zip) utilized by the EVOLUTION stealer family. Detecting hardcoded file path behaviors allows defenders to identify stealer families even when static indicators rotate.
Detects the sudo phishing routine writing the XOR-encoded stolen macOS user password to the hidden ~/.zsh_cache file.
Detects high volume Google Cloud Storage (GCS) object listing and downloads, which can indicate reconnaissance of cloud storage contents or data exfiltration. The rule correlates multiple 'storage.objects.list' and 'storage.objects.get' operations within a one-hour window from the same identity, bucket, and project, flagging activity exceeding 50 operations.
Detects the creation of an mcp.json file within the .amazonq directory, followed shortly by the execution of suspicious child processes (bash, python, curl, etc.) by VS Code (Code.exe). This pattern is often indicative of an adversary abusing developer tools or IDE extensions to perform credential discovery or data exfiltration from a development environment.
Detects Vidar Stealer scanning the memory of a forked browser process for the Chromium KeyRing 32-byte pattern using NtReadVirtualMemory and NtQueryVirtualMemory to locate the v20_master_key across MEM_COMMIT and MEM_PRIVATE regions. This behavior is indicative of an information stealer attempting to exfiltrate sensitive browser data.
Detects the execution of OSQL.EXE to perform a database table dump to a file on the local system. The rule specifically monitors for OSQL connecting to a local SQL instance (localhost or 127.0.0.1) and utilizing the output flag (-o) to save query results to a file with a .sql extension, which is a common indicator of unauthorized data staging or collection.
Detects browsers loading external anomalous scripts from known malvertising domains while visiting plaintext HTTP sites (Router injection). This rule specifically looks for network connections on port 80 (HTTP) that are joined with device network events where the remote URL matches a regex for known malvertising domains (.xyz, .top, .site) and ends with '.js', indicating an injected script.
Detects the Lambsys cryptominer malware performing SSH credential harvesting by accessing user SSH keys (known_hosts, authorized_keys, id_rsa) with unauthorized processes, staging these files in temporary or hidden directories, and subsequently initiating outbound SSH connections for lateral movement, all correlated by process group ID.
Detects instances where 'node.exe' is copying browser history SQLite databases (Chrome, Edge, Brave) to temporary directories, potentially indicating data exfiltration or staging. This behavior has been observed in supply chain attacks like the 'easy-day-js' incident involving the 'protocal.cjs' backdoor.
This rule detects shell reconnaissance activities associated with the TeamPCP threat group. Specifically, it looks for commands that parse '/var/log/auth.log' for successful logins or execute 'env | grep AWS_' to find AWS credentials. This behavior is indicative of an attacker attempting to gather authentication information or cloud credentials from a compromised system.
This rule correlates the execution of the VS Code CLI ('code.exe') with the output redirection of a command prompt ('cmd.exe') to a temporary text file. This behavior is indicative of an attempt to scrape authentication codes, potentially for phishing or credential theft, specifically targeting the 'tunnel' functionality of VS Code.
Correlates the exploited Bomgar service gathering and compressing large amounts of internal data into an archive file prior to egress. This rule specifically looks for Bomgar processes initiating archive creation using common archiving utilities like tar, zip, or 7z, with the command line indicating the creation of a .zip or .tar.gz file.
Detects anomalous activity where a single user or service principal downloads more than 5 Microsoft Teams meeting recordings within a 1-hour window. This behavior potentially indicates an insider threat or compromised account performing bulk harvesting of sensitive meeting content.
Detects loading of "credui.dll" and related DLLs by an uncommon process. Attackers might leverage this DLL for potential use of "CredUIPromptForCredentials" or "CredUnPackAuthenticationBufferW".
Detects processes associated with Remcos RAT attempting to perform activity logging or idle time monitoring by looking for specific command-line arguments related to window and idle state functions, combined with process names or command lines containing 'Remcos'.
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.
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.
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