Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects the creation of scheduled tasks using the 'schtasks.exe' utility, a technique often used by the CRPx0 ransomware to establish persistence on a system. The rule specifically monitors for the '/create' command-line argument while excluding common, benign updater processes such as those from Microsoft Edge, Google, and OneDrive.
Detects evidence of sandbox or virtualization evasion by identifying discovery commands that query WMI hypervisor classes or common virtual machine hardware strings. This activity is considered a precursor (pre-detonation check) when followed by the execution of encoded PowerShell commands or Python scripts on the same host, which is characteristic of the CRPx0 ClickFix attack chain.
This rule detects network connections to known CRPx0 relay or Command and Control (C2) IP addresses, as well as DNS requests to domains associated with the CRPx0 infrastructure, including relay nodes, leak sites, and TLD-rotation services.
Detects network communication with a known CRPx0 clearnet relay (207.180.29.236:8080) coupled with evidence of local Tor SOCKS5 proxy activity (ports 9050/9150) on the same host, indicating the bridging of traffic to an onion-hosted C2 server.
Detects modifications to a user's multi-factor authentication (MFA) settings, including changes to registered phone numbers, authenticator app configurations, or the registration of new authentication methods. This activity can indicate an attempt to weaken security defenses or gain persistent, unauthorized access to an account via MFA bypass.
This rule detects when a user account updates their MFA information in Azure AD or Microsoft 365, resulting in an increase in the number of associated MFA devices. This is a common indicator of an attacker registering a new MFA device (such as a hardware token or phone app) to a compromised account to establish persistence or bypass existing MFA requirements.
Detects Microsoft Teams messages containing keywords related to authentication updates, passkey enrollment, or SSO changes combined with urgent language or calls to action (e.g., clicking links). The rule attempts to identify potential credential harvesting or account takeover attempts within the chat platform.
Detects instances where Acronis processes spawn common administrative or potentially sensitive utilities (such as chmod, chown, bash, or sudo) while running as a user other than root. This behavior may indicate an attempt to utilize Acronis for privilege escalation or unauthorized command execution on Linux systems.
Detects outbound HTTP requests from the internal network to the domain 'adminmenueditor.com'. This domain has been associated with a compromised software supply chain attack targeting the Admin Menu Editor Pro WordPress plugin, which was used to distribute malicious code to users.
This rule detects file creation, modification, or renaming activity involving Acronis plugins integrated with web hosting control panels such as cPanel, WHM, or Plesk, where the plugin version is identified as vulnerable. It specifically monitors for versions earlier than 1.9.3 (excluding specifically patched 1.9.3 HF3 versions) that are prone to exploitation.
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