Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a sequence where a FortiSIEM-related process writes or modifies a shell script in a cron or phoenix directory, followed closely within 2 minutes by a child process spawned by cron executing that same written script file.
Detects creation or modification of cron entries on the BeyondTrust
Remote Support / Privileged Remote Access appliance. After exploiting the pre-auth
vulnerability, attackers establish recurring execution for persistence and C2
beaconing via cron (T1053.003) on the Linux-based appliance.
Follows CISA's urgent patch advisory for BeyondTrust appliances.
Remote Support / Privileged Remote Access appliance. After exploiting the pre-auth
vulnerability, attackers establish recurring execution for persistence and C2
beaconing via cron (T1053.003) on the Linux-based appliance.
Follows CISA's urgent patch advisory for BeyondTrust appliances.
Detects the creation of scheduled tasks (Windows), cron jobs (Linux), or systemd timers where the initiating process is a common scripting or runtime interpreter (e.g., Python, Node.js, PowerShell, Java). This activity is often indicative of persistence mechanisms being established by a compromised agent or script-based process.
Detects the creation of scheduled tasks (Windows), cron jobs (Linux), or systemd timers where the initiating process is a common scripting or runtime interpreter (e.g., Python, Node.js, PowerShell, Java). This activity is often indicative of persistence mechanisms being established by a compromised agent or script-based process.
Detects the creation or modification of scheduled tasks (crontab entries) initiated by processes commonly associated with Citrix NetScaler ADC/Gateway appliances (nsppe, httpd, nscollect). This behavior is often indicative of persistence mechanisms used by attackers following an initial exploit on an edge network device.
Detects the creation of scheduled tasks, recurring jobs, or webhook subscriptions by a user identity flagged as an AI_AGENT. This activity is monitored for persistence, especially when the event lacks a descriptive context or targets external networks, suggesting potential unauthorized agent behavioral drift or malicious persistence.
Detects persistence mechanisms associated with the CARBONATO botnet. The rule identifies two primary behaviors: the execution of a hidden watchdog binary '/usr/local/bin/.docker-network-monitor' by the cron daemon, and the use of 'chattr +i' to make this watchdog binary immutable, preventing deletion or modification.
Detects the creation of scheduled tasks, recurring jobs, or webhook subscriptions by a user identity flagged as an AI_AGENT. This activity is monitored for persistence, especially when the event lacks a descriptive context or targets external networks, suggesting potential unauthorized agent behavioral drift or malicious persistence.
Detects persistence mechanisms used by the CARBONATO botnet on Linux-based Docker hosts. The rule monitors for the application of immutable file attributes using 'chattr +i' on identified watchdog binaries (specifically '.docker-network-monitor'), the creation of malicious cron jobs, the enabling of suspicious systemd timers ('docker-network-resolver'), and the execution of specific persistence-related shell scripts.
Detects various persistence mechanisms used by the CARBONATO botnet on Linux systems, including registration of cron jobs, systemd services/timers, and the usage of 'chattr +i' to make persistence files immutable.
Detects the creation or modification of a file within the /etc/cron.d/ directory, followed shortly by a Bash process invocation using /dev/tcp redirection. This pattern is commonly used by attackers to achieve persistence via cron and establish reverse shells, bypassing potential limitations of default system shells that do not support /dev/tcp syntax.
Detects various persistence mechanisms used by the CARBONATO botnet on Linux systems, including registration of cron jobs, systemd services/timers, and the usage of 'chattr +i' to make persistence files immutable.
Detects various persistence mechanisms used by the CARBONATO botnet on Linux systems, including registration of cron jobs, systemd services/timers, and the usage of 'chattr +i' to make persistence files immutable.
Detects various persistence mechanisms used by the CARBONATO botnet on Linux systems, including registration of cron jobs, systemd services/timers, and the usage of 'chattr +i' to make persistence files immutable.
Detects a Redis process connecting to a suspected rogue replication master (using non-standard ports or known malicious IPs) followed by a file modification to a system cron directory. This sequence is indicative of a Redis Rogue Replication exploit where a crafted RDB file is used to achieve persistence by writing a malicious entry to a cron job.
Detects the creation of files within the /etc/cron.d/ directory initiated by the redis-server process, specifically looking for malicious payloads containing bash -c and /dev/tcp/ command wrappers indicative of a reverse shell or beaconing persistence mechanism often used by Redis-targeting botnets.
Detects various persistence mechanisms used by the CARBONATO botnet on Linux systems, including registration of cron jobs, systemd services/timers, and the usage of 'chattr +i' to make persistence files immutable.
Detects the creation or modification of scheduled tasks (cron jobs) located within web application log directories (e.g., JBoss, Tomcat, Wildfly) that exhibit behavior consistent with malicious file reinjection. This rule correlates suspicious cron activity with recurring modifications to sensitive web files (e.g., JS bundles, checkout pages), indicating persistent skimmer activity that survives redeployment.
Detects the deployment and activity of SilkParasite-associated Linux threats, including XMRig cryptocurrency miner shell scripts and standalone Meterpreter agents. The rule also captures the execution of a custom Python fleet-scanning tool used to interact with exposed Redis instances for unauthorized command execution and infrastructure management.
This rule detects the creation of cron jobs in /etc/cron.d/ that are associated with known miner file names (e.g., redis-miner, xminer). It explicitly looks for instances where the initiating process or its parent process is associated with Redis, suggesting a compromise or exploitation of a Redis service to establish persistence for a crypto miner.
This rule detects the creation of cron jobs in /etc/cron.d/ that are associated with known miner file names (e.g., redis-miner, xminer). It explicitly looks for instances where the initiating process or its parent process is associated with Redis, suggesting a compromise or exploitation of a Redis service to establish persistence for a crypto miner.
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