UNC3886 is a China-nexus cyberespionage group that has been active since at least 2022, targeting defense, technology, and telecommunication organizations located in the United States and the Asia-Pacific-Japan (APJ) regions. UNC3886 has displayed a deep understanding of edge devices and virtualization technologies through the exploitation of zero-day vulnerabilities and the use of novel malware families and utilities.[1][2]
49
TechniquesTop 16%
13
TacticsTop 15%
8
Tools & malwareTop 24%
1
Campaignunranked
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
UNC3886 has employed layers of redundancy to maintain access to compromised environments including network devices, hypervisors, and virtual machines.4
UNC3886 has replaced atomic indicators mentioned in threat intelligence publications, sometimes as quickly as under a week after release.11
Stealth6 detection rules
Standing G1048
Reach is how much of ATT&CK this group touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 176 ATT&CK groups only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.
Reach
Techniques49Top 16%
84th percentile · 84% of 176 ATT&CK groups have this many Enterprise techniques or fewer.
Tactics13Top 15%
85th percentile · 85% of 176 ATT&CK groups have this many tactics spanned or fewer.
Tools & malware8Top 24%
76th percentile · 76% of 176 ATT&CK groups have this many tools and malware or fewer.
Campaign189% tie · 4 values
89% of the population shares a single value across only 4 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique7medBottom 17%
17th percentile · 83% of 176 ATT&CK groups have more detection rules per technique.
Tests / technique2med
UNC3886 detections G1048
1504 distinct rules cover the 49 techniques recorded for this group. 985 Sigma · 519 Splunk.
41 covered by at least one rule8 with no coverage1504 distinct rules in total
Showing 1-50 of 1,500+ rules
Drag headers to reorder | Drag edges to resize
Select
Title
Description
Category
Status
Event
OS
Product
MITRE ATT&CK
CVEs
Severity
Author
Created
Updated
ID
Refs
Splunk
The following analytic detects the execution of 7z or 7za processes with command lines pointing to SMB network shares. (...)
The following analytic identifies access to the /api/v1/configuration/users/user-roles/user-role/rest-userrole1/web/web-bookmarks/bookmark endpoint, which is associated with CVE-2023-46805 and CVE-2024-21887 vulnerabilities. (...)
Mark Morowczynski '@markmorow', MikeDuddington, '@dudders1', Tim Shelton
2022-08-11
2022-08-18
6f583da0-3a90-4566-a4ed-83c09fe18bbf
This method uses uncommon error codes on failed logons to determine suspicious activity and tampering with accounts that have been disabled or somehow restricted.
The following analytic detects potential exploitation of the Adobe ColdFusion vulnerability, CVE-2023-26360, which allows unauthenticated arbitrary file read. (...)
Tobias Michalski (Nextron Systems), Max Altgelt (Nextron Systems)
2021-09-20
2023-01-02
6702b13c-e421-44cc-ab33-42cc25570f11
Splunk
The following analytic detects a registry modification that allows the 'Consent Admin' to perform operations requiring elevation without user consent or credentials. (...)
Mark Morowczynski '@markmorow', Bailey Bercik '@baileybercik'
2022-06-01
—
248649b7-d64f-46f0-9fb2-a52774166fb5
Resource owner password credentials (ROPC) should be avoided if at all possible as this requires the user to expose their current password credentials to the application directly. (...)
Mark Morowczynski '@markmorow', Bailey Bercik '@baileybercik'
2022-06-01
—
55695bc0-c8cf-461f-a379-2535f563c854
Detects when AppLocker "Audit only" enforcement mode reports that an Application, DLL, Script, MSI, or Packaged-App would have been blocked if AppLocker "Enforce rules" enforcement mode was enabled.
Identifies two sign-ins originating from geographically distant locations, where at least one of the locations may also be atypical for the user, given past behavior.