BRONZE BUTLER

BRONZE BUTLER is a cyber espionage group that appears to be Chinese-based and has been active since at least 2008. This group has primarily targeted Japanese organizations, particularly those in the government, biotechnology, electronics manufacturing, and industrial chemistry industries.

Other names for this threat

REDBALDKNIGHT, Tick

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

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.

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.

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.