DDI RULE 98
Unidentified protocol using standard service port
Visão geral
This is Trend Micro detection for packets passing through various network protocols that manifests Suspicious Traffic activities which can be a potential intrusion. Below are some indicators of unusual behavior:
- Suspicious activity in administrator or privileged accounts
- Dubious logins, access, and other network activities that indicate probing or brute force attacks
- Anomalous spike of requests
- Network traffic that traverses in unusually used ports
- Unknown files, applications, and processes in the system
- Unusual traffic going in and out of the network
- Unusual message or file structure
Detalhes técnicos
Attack Phase: Command and Control Communication
Protocol: Unknown,IP,ARP,TCP,UDP,IGMP
Risk Type: OTHERS
(Note: OTHERS can be network connections related to hacking attempts, exploits, connections done by grayware, or suspicious traffic.)
Threat Type: Suspicious behavior
Confidence Level: High
Severity: Informational(Inbound)| Low(Outbound)
DDI Default Rule Status: Disable
Event Class: Suspicious Traffic
Event Sub Class: Unknown or Encrypted Protocol
Behavior Indicator: Suspicious Traffic
APT Related: NO
Solução
Immediate Action
- Update your Trend Micro products and pattern files to the latest version.
- Scan the host exhibiting this type of network behavior to clean any detected items.
Secondary Action
If scanning fails to detect a malware infection:
- If possible, disconnect the host from the network to prevent any further communication or malicious activities the malware may attempt.
- Run RootkitBuster to check through hidden files, registry entries, processes, drivers, and hooked system services.
- Use the Anti-Threat Toolkit (ATTK) tools to collect undetected malware information.
- Identify and clean threats with Rescue Disk, specific to suspected threats that are persistent or difficult-to-clean. Rescue Disk allows you to use a CD, DVD, or USB drive to examine your computer without launching Microsoft Windows.
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