Detections

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

644 detections

This rule detects execution of specific functions or command-line arguments derived from the GigaWiper / FlockWiper malware family. These functions are associated with destructive activities such as file discovery, sorting, reading, and secure encryption or deletion of files, indicative of a wiper-style attack.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
000
Detects file creation events with the .candy extension, consistent with the GigaWiper/Crucio-derived BigBang extortion module (BigBangExtortMain, bigBangSingleFileExtortion, bigBangHybridEncryption) which AES-CBC encrypts files using randomly generated, unsaved key/IV pairs across enumerated Windows logical drives before deleting the original file with os.Remove.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
000
Detects repeated execution of 'defaults read' or 'du -sh' commands within a one-hour window. These commands are commonly used for system information and file directory discovery, which may indicate reconnaissance activity by an attacker.
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Duo Tech@duotech
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Detections.ai Community
4 months ago
103
Detects Node.js processes generating text or log files containing diagnostic markers related to network activity monitoring, such as 'Network Connection Dump Snapshot' or 'Monitoring active egress sockets'. This behavior is characteristic of custom tool execution used for network discovery and data collection on a host.
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Duo Tech@duotech
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Detections.ai Community
3 months ago
001
Detects the PureLog Stealer performing system and process reconnaissance using .NET capabilities reflectively loaded via PowerShell. The rule monitors for the combination of process enumeration (System.Diagnostics.Process/Win32_Process), system metadata harvesting (Environment class properties), and memory-only execution patterns (Reflection.Assembly.Load) within PowerShell script block logs.
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Tim Peck@timpeck
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Detections.ai Community
4 months ago
11040
These YARA rules detect the ToxicEye Remote Access Trojan (RAT), a malicious tool written in C# that leverages the Telegram Bot API for command and control. The rules identify specific hardcoded configuration settings (Telegram bot tokens, addresses for crypto wallets, persistence settings, and file grabber configurations), unique project strings (author attribution, warning messages), and debug logs associated with the malware's functional modules such as keylogging, credential stealing, file exfiltration, and system destructive capabilities like boot sector overwriting.
100daysofyara 2025@100daysyara2025
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100 Days of YARA 2025
3 months ago
000
Detects unauthorized or unprivileged user-mode processes attempting to access files within Volume Shadow Copy paths. This behavior is indicative of reconnaissance or exploit techniques such as those observed in the RoguePlanet framework, where attackers enumerate snapshots to resolve stable file paths for subsequent malicious activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
12030
Detects processes attempting to copy or access browser cookie files, indicated by strings associated with unauthorized data collection tools or custom scripts.
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Duo Tech@duotech
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Detections.ai Community
4 months ago
005
This rule detects potentially malicious MySQL database operations involving sensitive file access or suspicious data exportation. It monitors for the use of 'INTO OUTFILE' commands pointing to sensitive paths (like /var/lib/mysql-files/) or the use of 'LOAD_FILE' commands to access system files such as /var/run/docker.sock, /proc/1/cgroup, or /proc/1/mountinfo, which are indicative of attempts to exfiltrate database content or escape a container environment.
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Duo Tech@duotech
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Detections.ai Community
4 months ago
102
This rule detects the execution of the AD Explorer tool followed by the creation of a .dat file within a 10-minute window. AD Explorer is a known administrative tool often used by adversaries for Active Directory reconnaissance, and creating or saving files with a .dat extension may indicate the export of captured AD data for further analysis or exfiltration.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
106
Detects a process creating SQLite-style database files with random hex-like names within a randomly named subfolder of the Windows %TEMP% directory. This behavior, when correlated with file system access to specific cryptocurrency wallet directories (Electrum, Exodus, Ethereum, Coinomi), is consistent with Vidar information stealer staging activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
204
This rule detects multiple unauthorized access attempts to files identified as machine learning models, weights, or checkpoints. It specifically looks for Security Event ID 4656 (Auditing of object access) where the object name contains keywords like 'model', 'weights', or 'checkpoint', and the access mask indicates unauthorized access attempts (0x0001 for ReadData or ListDirectory, 0x0002 for WriteData or AddFile). The rule then summarizes these attempts by user, computer, and hour, triggering an alert if 5 or more attempts are made within an hour.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
006
This rule detects suspicious command-line activity by looking for the presence of keywords such as 'risk', 'threat', or 'exposure' in process creation command lines (Event ID 4688). It then aggregates these events by computer and account over one-hour intervals and flags if 3 or more such activities occur within that hour, indicating potential reconnaissance or malicious activity.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
006
This rule detects potential exfiltration attempts from a GCP Cloud Run container by monitoring for outbound network connections triggered by processes reading sensitive local files. The files being monitored include environment variable configurations (/proc/self/environ) and application source code, which may contain credentials or service account tokens.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
206
Detects host reconnaissance and file discovery activities indicative of the MINIRECON implant, a tool linked to Mustang Panda campaigns. The rule monitors for the execution of common system enumeration and file searching commands triggered by the 'pct12bmp.exe' process, or in unauthorized contexts.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
907
Detects instances where files located in root or non-standard paths are opened by processes that are not core Windows system processes or Microsoft security products, which may indicate suspicious activity such as manual file interaction or discovery.
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Renata Cardoso@rcardososec
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Detections.ai Community
4 months ago
004
This rule detects when a single process account creates 5 or more files containing 'database', 'db', or '.sql' in their filenames within a one-hour window. This could indicate an attempt to stage, exfiltrate, or manipulate database files.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
005
Detects artifacts and activity related to the exploitation of CVE-2026-55200 in libssh2. The rule monitors for the creation or execution of identified libpwn exploit harness files and scripts, as well as suspicious network activity involving TCP port 2222, which is the default port for the PoC rogue SSH server. It also correlates the appearance of these exploit files with subsequent outbound SSH connections.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
106
Detects malicious activity associated with the exploitation of StreamBucket PHP vulnerabilities. The rule monitors for unexpected child processes spawned by PHP/web server processes, the creation of specific exploitation artifact files in /tmp, unauthorized reading of /proc/self memory files by PHP, and inbound SOAP-related HTTP requests.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
106
This rule detects shell commands (bash, sh, zsh) initiated by AI-agent or development-related processes (e.g., Python, Claude Desktop, openclaw) that target sensitive macOS paths associated with credentials, SSH keys, crypto wallets, and browser cookies, a technique characteristic of the Atomic Stealer (AMOS) malware.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
4 months ago
106
Detects malicious .jse loader scripts associated with Kimsuky's NUKESPED malware family. The rule identifies suspicious behaviors including the creation of Scripting.FileSystemObject for filesystem manipulation, use of GetSpecialFolder for staging, and file system enumeration via GetFile, which are key components of the threat's payload delivery and staging process.
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Ibrahim Saud@tektrix
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Detections.ai Community
4 months ago
004
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