Rancor

Rancor is a threat group that has led targeted campaigns against Southeast Asia. Rancor has used politically motivated lures to trick victims into opening malicious documents.

This is a collection of rules based on the presence of indicators of compromise publicly reported as associated with this malicious actor.

• Suspicious DNS Request - Rancor Related Domain Observed
• Suspicious Process - Rancor Related Binary Executed
• Suspicious Web Request - Rancor Related Domain Observed

Suspicious DNS Request - Rancor Related Domain Observed

Description

This detection identifies a request to resolve a domain publicly known to be associated with this specific malicious actor. Please be aware that malicious actors will often use compromised legitimate websites for malicious purposes.

Recommendation

The alert may be related to normal web browsing activity by the end user. Review the alert in question. If necessary, rebuild the host from a known, good source and have the user change their password.

Suspicious Process - Rancor Related Binary Executed

Description

This detection identifies the execution of a file with a hash publicly known to be associated with this specific malicious actor. Please be aware that malicious actors will often use common System Administration tools for malicious purposes.

Recommendation

Review the alert in question. If necessary, rebuild the host from a known, good source and have the user change their password.

Suspicious Web Request - Rancor Related Domain Observed

Description

This detection identifies a request to a domain publicly known to be associated with this specific malicious actor. Please be aware that malicious actors will often compromise legitimate websites to use for malicious purposes.

Recommendation

The alert may be related to normal web browsing activity by the end user. Review the alert in question. If necessary, rebuild the host from a known, good source and have the user change their password.