Ibrahim Saud
@tektrixIndiaCompletionist
2 followers18,457 downloads7,056 copies47 likes38,418 views
11,679 detections
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Detects download, execution, and network activity associated with the 'isp.sh' dropper script. This includes the use of common utilities like curl or wget to fetch the script from a specific C2 IP address (83.142.209.214), piping the script directly to a shell, and signs of secondary payload execution such as 'lambsys'.
This rule detects network connections or DNS queries to known public tunneling services (e.g., Cloudflare Tunnel, localtunnel, bore, devtunnels) made by processes other than common web browsers. Attackers frequently use these services to bypass firewalls and establish unauthorized reverse shells or persistent C2 channels.
Correlates a user passing a CAPTCHA gate (Cloudflare Turnstile, reCAPTCHA) with an immediate subsequent connection to an unknown, low-prevalence domain hosting the actual phishing landing page.
Detects the netsh utility being abused to explicitly open port 3389 in the Windows Defender Firewall to allow inbound RDP traffic.
Identifies the macOS stealer utilizing osascript to pop a fake system dialog, requesting the user's administrator password for privilege escalation.
Identifies the compromised session token being reused rapidly across Exchange Online, SharePoint, and Teams from a single IP to harvest data. This rule detects when a single account object ID and IP address access 3 or more distinct applications within a 5-minute window, which could indicate the reuse of a compromised token.
Detects unauthorized modification or dropping of model files directly into the local Hugging Face cache directory (~/.cache/huggingface/hub) by non-standard development processes, indicating an attempt to swap legitimate models for backdoored ones.
This rule detects pre-payload beaconing activity associated with the Meow RAT malware. It covers both network-based detection (outbound HTTP POST to known C2 domains and paths) and endpoint-based detection. Endpoint detection includes 'curl' processes communicating with known C2 infrastructure, 'osascript' processes spawned in the context of 'curl' C2 communication, and 'curl' commands using specific flags ('-k', '-s') along with a known build hash. This activity typically occurs before the main destructive payload is delivered.
Detects emails containing attachments that mimic voicemail files (e.g., .mp3.eml) with an HTML content type, often used in phishing campaigns. The rule specifically looks for dual extensions, HTML content type, a specific file size range, and subject line keywords related to financial institutions or unauthorized activity, indicating a potential Scotiabank impersonation or similar financial lure.
Detects suspicious execution patterns involving 'npm' or 'node' processes, specifically looking for command-line arguments or folder paths related to 'apintegrationpost' or known components of the MYRA malware family (libcache.so, memfd_loader, proc_hide, injector, agent_launcher). This rule aims to identify potential supply chain compromise or malicious activity leveraging Node.js environments.
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