Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,458 downloads7,120 copies47 likes38,572 views
11,679 detections
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Detects exploitation attempts against the Flowise Model Context Protocol (MCP) environment, specifically targeting the node_options case-sensitivity bypass (CVE-2026-20182). The rule monitors for malicious node child process spawning, command line injection via the --require flag, suspicious file creation (flowise_marker.txt), and unauthorized outbound network connections from the Flowise process.
Detects artifacts and network activity associated with a malicious Chromium extension (ID: flkebkiofojicogddingbdmcmkpbplcd) that uses declarativeNetRequest rules to redirect browser search traffic to a typosquatted domain (perplexity-ai.online). The rule correlates file creation, registry modifications, and outbound network connections to the malicious domain from common web browsers.
Detects HTTP requests to Gitea instances containing the X-WEBAUTH-USER header, which facilitates user impersonation when Gitea is misconfigured with 'REVERSE_PROXY_TRUSTED_PROXIES = *' in a Docker environment. This vulnerability (CVE-2026-20896) allows an unauthenticated attacker to impersonate any user, including administrators.
Detects indicators of the DirtyClone (CVE-2026-43503) Linux kernel local privilege escalation exploit. The rule identifies the execution or compilation of the PoC binary, the specific su invocation used for shell spawning by the exploit, and subsequent post-exploitation actions including modifying sensitive files (/etc/passwd, /etc/sudoers) and creating new local accounts with sudo privileges.
Detects execution of WinRAR utilities (rar.exe, winrar.exe) where the command line contains the '-a' (add to archive) flag or involves paths typically associated with data staging (Temp, AppData, Users, or Public directories), which may indicate an attempt to archive collected data prior to exfiltration.
Detects potential data exfiltration activity to the file sharing service 'easyupload.io' by monitoring DNS queries, HTTP POST requests, and general network connections to the domain.
Detects the creation or registration of virtual machines across multiple hypervisor platforms (Hyper-V, VMware ESXi, and VirtualBox) using PowerShell, command-line utilities, or security event logs. The rule alerts on these actions when performed outside of designated business hours or by accounts not included in a pre-defined list of authorized administrators.
This rule detects potential session token theft or replay attacks by identifying non-interactive sign-in events that occur from a different IP or geographic location than the user's most recent successful MFA-authenticated interactive session. It flags cases where a non-interactive token is used within a short timeframe (1 hour) of an interactive session from a different location, which may indicate the exfiltration and subsequent use of session cookies or OAuth tokens.
Detects the execution of potential malware disguised as 'winupdate.exe' and specific network traffic associated with it. The rule identifies suspicious file paths (e.g., in AppData cache) and execution by the binary while communicating with external domains such as pastebin.com or discord.com, which are often abused for command-and-control or payload delivery.
This rule detects the execution of processes named 'RoguePlanet.exe' and monitors for inter-process communication using named pipes with the same name. This pattern is indicative of a specific malware payload attempting to establish communication channels for C2 or process interaction.
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