Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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This rule monitors process execution and registry modifications for filenames, process command lines, or registry keys associated with 'truesight.sys' and 'rentdrv2.sys'. These artifacts are typically associated with malicious kernel-mode drivers, such as rootkits, often used for stealth or persistence on Windows systems.
This rule identifies potential network scanning or propagation activity by detecting a single host initiating SMB (TCP 445) connections to a high number (more than 20) of unique destination IP addresses within a given timeframe. This behavior is often indicative of internal reconnaissance, lateral movement, or worm-like propagation.
Detects the execution of ADExplorer64.exe, a legitimate but potentially misused Sysinternals tool often utilized by attackers for Active Directory reconnaissance and enumeration of domain objects.
Detects instances where the ScreenConnect ClientService process initiates a child process that is not a recognized ScreenConnect binary. It further filters for child processes created shortly after a file has been created or modified by the ScreenConnect service, which is often indicative of an adversary using the remote access tool to drop and execute malicious payloads.
Detects Microsoft Exchange Control Panel (ECP) worker process (w3wp.exe) spawning suspicious child processes (e.g., cmd.exe, powershell.exe, mshta.exe) that are commonly associated with the exploitation of CVE-2020-0688. This vulnerability involves unsafe deserialization within the Exchange ECP ViewState handling, which allows an attacker to execute arbitrary code with SYSTEM privileges.
Detects outbound HTTP requests to the Telegram Bot API (/sendMessage) which are often used by malware (such as 'Exvicy' or 'Small Sieve') for command and control or exfiltration notification, utilizing the Telegram bot token structure in the URI.
Detects outbound network traffic from internal hosts directed toward identified Exvicy command-and-control (C2) infrastructure IP addresses. This includes both general beaconing attempts and established TLS handshake sessions potentially linked to post-ClickFix malicious activity.
Detects an attempt to exploit a directive injection vulnerability in the SharePoint 'WebPartPages.asmx' SOAP web service, specifically targeting the 'GetWebPartPageConnectionInfo' method. The rule looks for suspicious 'Register' directives in the request body, which could lead to unauthorized code execution or configuration manipulation.
Detects specific Cloudflare name server pairs ('randy.ns.cloudflare' and 'stevie.ns.cloudflare') in DNS responses. This pattern is associated with Exvicy domain management infrastructure, which has been identified as a component in adversary C2 and domain staging operations.
These rules detect various exploitation attempts targeting SharePoint to bypass SafeControls, an security mechanism used to restrict the types of controls allowed in web parts. The patterns match suspicious Register directives and markup injection techniques often associated with remote code execution or privilege escalation, as identified in CVE-2026-65660.
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