Mikroceen
Mikroceen is an advanced persistent threat group identified by ESET as one of multiple actors exploiting the Microsoft Exchange ProxyLogon vulnerabilities in early 2021. In the provided reporting, Mikroceen is also referred to as Vicious Panda. The group was observed compromising the Exchange server of a utility company in Central Asia, which the reporting notes is a region it typically targets. The broader Exchange exploitation activity involved deployment of web shells on unpatched on-premises Exchange servers, and the specific mention of Mikroceen states that the group injected versions of Mimikatz. The content places Mikroceen among the set of likely Chinese or Chinese-backed groups observed exploiting these Exchange flaws, but does not provide additional high-confidence detail on its tooling, sub-groups, or operations beyond the Central Asia utility-sector intrusion.
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Targeting
Who, where, and (when attributed) which flag flies behind the operation. Pulled from open-source reporting and Mallory's analyst review.
Who they target
Sectors the actor has been observed targeting.
- Utilities
Where they're from
Attributed origin per open-source reporting.
- CN
Tradecraft
1 distinct technique observed across reporting, grouped by tactic. Hover any cell for the evidence excerpt; click through for MITRE's full description.
Associated malware families
1 malware family attributed to this actor across reporting.
Associated vulnerabilities
4 CVEs this actor has used in observed campaigns. 4 of them exploited in the wild.
Previously, Eset reported that about five APT groups has been exploiting the four Exchange vulnerabilities - CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065 ... Security firm Volexity spotted hackers targeting Exchange servers on Jan. 3, when it saw CVE-2021-26855 being exploited.
Previously, Eset reported that about five APT groups has been exploiting the four Exchange vulnerabilities - CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065
Previously, Eset reported that about five APT groups has been exploiting the four Exchange vulnerabilities - CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065
Previously, Eset reported that about five APT groups has been exploiting the four Exchange vulnerabilities - CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065
Recent activity
2 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Post-patch exploitation of Exchange vulnerabilities against a Central Asian utility; deployed Mimikatz variants for credential theft.
Compromised a utility company's Exchange server in Central Asia as part of the ProxyLogon exploitation activity.
The version that knows your environment.
Match sector + geo + tech-stack targeting against your real footprint.
Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Domains, IPs, and hashes tied to this actor, refreshed continuously.