Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Threat actors are exploiting the recently Discovered WordPress Vulnerability. Vulnerability Management platform like defender not fully capable of identifying the vulnerable WordPress Core Application being installed on the organizations Servers. If you are using Defender XDR, here's the KQL to hunt for WordPress Installed Linux and Windows Servers.
This rule detects unauthorized access or modifications to hardware watchdog device files (/dev/watchdog, /dev/watchdog0, /dev/misc/watchdog, /dev/FTWDT101_watchdog) on Linux systems. Adversaries may manipulate these files to disable the hardware watchdog's automatic reboot functionality, potentially to maintain persistence or to ensure system stability while performing malicious actions without the risk of an unexpected forced reboot.
Detects outbound HTTPS traffic to api.telegram.org originating from non-standard or unsigned processes. This rule is designed to identify potential data exfiltration by malware (such as stealers or trojans) using the Telegram Bot API as a C2 or exfiltration channel. It relies on a companion rule to establish flowbits for legitimate client traffic.
Generic rule content from file: Linux Privilege Escalation via Sudo/Wheel Enumeration and Setuid Ping6 Backdoor
This rule detects attempts to sabotage or brick Linux systems by monitoring for modifications or overwrites of critical system binaries responsible for reboot, shutdown, and power management, including 'reboot', 'shutdown', 'halt', 'poweroff', 'systemctl', and 'telinit'. It specifically identifies activity associated with the 'ELFOOD' header-corruption marker, a technique linked to the Tengu malware strain which prevents legitimate system reboots to maintain persistence and impede remediation efforts.
Detects potential SQL injection attempts targeting the WordPress REST API batch endpoint (/wp-json/batch/v1) specifically attempting to query the wp_users table for credential fields such as user_pass or user_login.
Detects malicious SQL injection attempts targeting WordPress REST API endpoints that attempt to forge post parameters by injecting self-referential cycles. The pattern specifically looks for 'UNION SELECT' combined with 'author_exclude' and manipulated 'post_parent' values, matching known exploitation patterns for the wp2shell vulnerability (CVE-2026-63030 / CVE-2026-60137).
Detects the creation of an app-specific password named 'ZimbraWeb' using the CreateAppSpecificPasswordRequest SOAP command in Zimbra logs. This technique is used to maintain persistent access to mailboxes while bypassing multi-factor authentication (MFA).
Detects execution, chmod, or invocation of the fuckaliyun.sh script used to disable Alibaba Cloud's Cloud Shield/Yundun host security monitoring agent, plus the associated iptables install added by JadeProx's modified variant of the script. Requires an actual execution context (direct invocation, chmod +x, or a bash/sh interpreter with the script as an argument or parent process) rather than any incidental string reference to 'fuckaliyun'.
Detects execution, chmod, or invocation of the fuckaliyun.sh script used to disable Alibaba Cloud's Cloud Shield/Yundun host security monitoring agent, plus the associated iptables install added by JadeProx's modified variant of the script. Requires an actual execution context (direct invocation, chmod +x, or a bash/sh interpreter with the script as an argument or parent process) rather than any incidental string reference to 'fuckaliyun'.
This rule detects a suspicious pattern on Linux systems where a process creates a file in the /tmp directory with a name consisting of a long hexadecimal string (indicative of a hash, often used by Rust-based loaders for Sliver or similar implants), followed immediately by the execution of that same file by the initiating process.
Detects suspicious execution patterns associated with the SleeperGem supply chain attack, where a compromised Gem install script (git_credential_manager-2.8.3/bin/install) spawns shell or PowerShell commands to trigger secondary malicious scripts like deploy.sh or redirects output to /dev/null.
Detects SleeperGem RubyGems supply chain artifacts: hardcoded Forgejo C2 reference in gem Ruby source, the git-credential-manager binary dropped under the hidden gcm path, and supporting deploy.sh/persistence indicators (ping6 backdoor, systemd/cron service under the git-credential-manager name)
Detects command-line execution or application configuration referencing the disabling of TLS certificate verification, specifically using 'OpenSSL::SSL::VERIFY_NONE' or 'http.verify_mode'. This pattern is often indicative of malicious activity attempting to bypass secure communication validation, such as in supply chain attacks involving compromised dependencies or backdoors.
Detects malicious SQL injection attempts targeting WordPress REST API endpoints that attempt to forge post parameters by injecting self-referential cycles. The pattern specifically looks for 'UNION SELECT' combined with 'author_exclude' and manipulated 'post_parent' values, matching known exploitation patterns for the wp2shell vulnerability (CVE-2026-63030 / CVE-2026-60137).
Detects PHP process execution invoking fsockopen() to establish an outbound reverse shell connection, consistent with SpyPress backdoor persistence mechanisms deployed by TA458 on compromised Roundcube webmail servers.
Detects HPC GPU and SLURM reconnaissance (nvidia-smi/squeue) run together or spawned from a Python parent process, consistent with the mrmustard stealer's environment-profiling behavior.
Detects malicious SQL injection attempts targeting WordPress REST API endpoints that attempt to forge post parameters by injecting self-referential cycles. The pattern specifically looks for 'UNION SELECT' combined with 'author_exclude' and manipulated 'post_parent' values, matching known exploitation patterns for the wp2shell vulnerability (CVE-2026-63030 / CVE-2026-60137).
Detects creation of a PHP file under a WordPress wp-content/cache directory attributed either to the mysqld process or to a web-server process (apache2) whose command line contains an INTO OUTFILE-style SQL pattern. In the wp2shell exploit chain, SQL injection reaching author__not_in can be abused to write a webshell via SQL INTO OUTFILE directly into wp-content/cache instead of the plugin-install path, bypassing plugin-directory-focused detections. Requiring database-process or INTO OUTFILE attribution reduces false positives from legitimate caching plugins that generate PHP cache files under this same directory.
Detects the keylog_start/keylog_stop C2 command schema with active-window-title capture used by ChonkyChicken's keylogging capability.
Detects anomalous SOAP requests to 'GetScratchCodesRequest' within the 'zimbraSync' or 'zimbraAccount' namespaces in Zimbra logs. This activity is indicative of credential harvesting attempts, specifically the exfiltration of 2FA recovery scratch codes, often associated with the ZimReaper/Ulej payload used by threat actors.
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