McAfee – Threat Intelligence Update | SUNBURST Malware and SolarWinds Software Supply Chain Compromise
In a blog post last evening, FireEye disclosed that threat actors compromised SolarWinds’s Orion IT monitoring and management software with a trojanized version of SoalrWinds.Orion.Core.BusinessLayer.dll delivered as part of a digitally-signed Windows Installer Patch. The trojanized file delivers the SUNBURST backdoor. Use of a Compromised Software Supply Chain (T1195.002) as an Initial Access technique is particularly critical as it can go undetected for a long period. FireEye released countermeasures that can identify the SUNBURST malware. If you are using SolarWinds software, please refer to the company guidance here to check for vulnerable versions and patch information. McAfee has evaluated the countermeasures and will continue to analyze further attack indicators as discovered. McAfee mitigation guidance is below.
McAfee Defensive Guidance
For the latest information see KB93861 and subscribe to receive updates. Below is protection summary to date.
- GTI Cloud has coverage for known file indicators and C2 domains
- Today’s DAT release has coverage for known indicators
- McAfee Web Gateway will block known C2 domains
- McAfee is continuing to review other detection approaches
MVISION Insights is tracking the campaign as SolarWinds Supply Chain Attack Affecting Multiple Global Victims with SUNBURST Backdoor
Mitre Tactics and Techniques
HUNTING FOR INDICATORS
You can use MVISION EDR or MAR to search endpoints for SUNBURST indicators as provided by Microsoft and FireEye. See the search syntax below. If you are licensed for MVISION Insights this query will take place automatically.
Begin MVEDR Query Syntax…
Files name, full_name, md5, sha256, created_at, create_user_name, create_user_domain and HostInfo hostname, ip_address, os and LoggedInUsers username, userdomain where Files sha256 equals “ac1b2b89e60707a20e9eb1ca480bc3410ead40643b386d624c5d21b47c02917c” or Files sha256 equals “c09040d35630d75dfef0f804f320f8b3d16a481071076918e9b236a321c1ea77” or Files sha256 equals “eb6fab5a2964c5817fb239a7a5079cabca0a00464fb3e07155f28b0a57a2c0ed” or Files sha256 equals “dab758bf98d9b36fa057a66cd0284737abf89857b73ca89280267ee7caf62f3b” or Files sha256 equals “32519685c0b422e4656de6e6c41878e95fd95026267daab4215ee59c107d6c77” or Files sha256 equals “d0d626deb3f9484e649294a8dfa814c5568f846d5aa02d4cdad5d041a29d5600” or Files sha256 equals “53f8dfc65169ccda021b72a62e0c22a4db7c4077f002fa742717d41b3c40f2c7” or Files sha256 equals “019085a76ba7126fff22770d71bd901c325fc68ac55aa743327984e89f4b0134” or Files sha256 equals “ce77d116a074dab7a22a0fd4f2c1ab475f16eec42e1ded3c0b0aa8211fe858d6” or Files sha256 equals “32519b85c0b422e4656de6e6c41878e95fd95026267daab4215ee59c107d6c77” or Files sha256 equals “292327e5c94afa352cc5a02ca273df543f2020d0e76368ff96c84f4e90778712” or Files sha256 equals “c15abaf51e78ca56c0376522d699c978217bf041a3bd3c71d09193efa5717c71”
…End MVEDR Query Syntax
You should also search McAfee Web Gateway logs (or other network and SIEM logs) for communication to command and control domains or IP addresses, particularly those categorized as “Malicious Sites” below.
It’s important to note that ongoing analysis will be critical to understand how the attackers will adapt and what additional mitigation is required. This will be a continuous process and we expect to add multiple updates to KB93861. Additionally, customers should follow McAfee Labs posts, check the Insights Preview Dashboard for latest threat intelligence, and continually check the Knowledge Center for latest product guidance.
Additional McAfee Threat Intel Resources
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