Ibrahim Saud
@tektrixIndiaCompletionist
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11,679 detections
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Detects RDP-over-TLS/NLA traffic occurring over non-standard high ports, which is often indicative of C2 communication or lateral movement associated with the SilkParasite infrastructure cluster.
Detects outbound network traffic from internal hosts to known IP addresses associated with the SpiceRAT malware command and control infrastructure.
Detects outbound HTTP requests to the Telegram Bot API that indicate the exfiltration of sensitive camera credentials or snapshots. The rules identify specific API endpoints such as '/sendPhoto' and the presence of Markdown-formatted text containing 'Login:', 'Password:', and 'Model:' fields within the request body.
Detects high-frequency TCP SYN scanning activity targeting port 37777, commonly associated with the discovery of vulnerable Dahua DVR and NVR devices.
Detects instances where wscript.exe spawns conhost.exe with a headless flag, which in turn executes PowerShell with hidden, encoded command-line arguments. This pattern is often indicative of multi-stage malware loaders attempting to obfuscate execution and bypass security monitoring.
Detects the execution of the OnvifUser utility with the -u flag, a technique observed in post-exploitation scenarios on Dahua network video recorder (NVR) devices to dump cached credentials.
Detects unauthorized attempts to disable Windows Defender Tamper Protection by setting the TamperProtection registry value to 0. This action allows an adversary to weaken system security, potentially enabling them to modify Defender exclusions or stop security services without interference.
Detects network traffic attempting to exploit CVE-2021-33044 in Dahua NetKeyboard devices. The rule identifies specifically crafted 'global.login' requests designed to bypass authentication mechanisms.
Detects high-concurrency brute-force attempts against Dahua Easy4IP-enabled devices targeting port 37777, identified by specific binary patterns (opcode 0xA0) in the packet payload. This indicates an automated attempt to compromise device authentication.
Detects the creation of a scheduled task configured to run under the SYSTEM account that executes a command to add a Windows Defender exclusion using Add-MpPreference. This technique is often used to ensure persistence of security exclusions by re-applying them automatically with high privileges, even if an interactive user attempts to remove them.
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