Bergard
Hunt this family in your stack
Mallory pivots from this family to the IOCs, detections, and named campaigns that touch your stack, and pages you when something new lands.
Groups observed using it
2 distinct threat actors attributed by public researchers. Open in Mallory to see the full evidence chain and overlapping campaigns.
The Bergard Trojan and the C0d0so group that made it famous with the November 2014 watering hole attack via Forbes.com have received renewed attention recently... In one instance related to this cluster of activity, we observed Bergard ... receive instructions from its C2 to retrieve a PNG file containing an encoded PlugX payload.
The Bergard Trojan and the C0d0so group that made it famous with the November 2014 watering hole attack via Forbes.com have received renewed attention recently... In one instance related to this cluster of activity, we observed Bergard ... receive instructions from its C2 to retrieve a PNG file containing an encoded PlugX payload.
Techniques & procedures
4 distinct techniques documented for this family, organized by ATT&CK tactic.
Initial Access
1 techniqueThe Bergard Trojan and the C0d0so group that made it famous with the November 2014 watering hole attack via Forbes.com have received renewed attention recently...
Command and Control
3 techniquesPrior to submitting the collected information to C2... Rekaf HTTP POST C2 Beacon. If the server responds with an encoded string 'Login Server Success' then the Rekaf bot will continue to perform HTTP GET requests to the server until it receives a command.
In one instance related to this cluster of activity, we observed Bergard receive instructions from its C2 to retrieve a PNG file containing an encoded PlugX payload... Rekaf supported commands... upload: Download file from C2 ... update: Retrieve an updated payload.
Unlike the last cluster however, this variant appears to have been used in an extensive DDNS cluster of infrastructure dating back to at least 2013... that campaign appeared to have slightly different tactics, techniques, and procedures (TTPs), including potentially target-themed domain infrastructure as well as heavily relying on dynamic DNS for C2 domains.
IOCs tracked for this family
18 indicators attributed across vendor reports, sandbox runs, and researcher write-ups. Full values are available in Mallory.
IPs, domains, and DNS infrastructure linked to this family.
File hashes (MD5, SHA-1, SHA-256) from samples and reports.
Recent activity
1 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
The version that knows your environment.
Match every observed IP, domain, and hash against your live telemetry.
Named campaigns wielding this family, with evidence pinned to each claim.
CVEs this family uses for access and lateral movement.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Every documented technique, ranked by evidence weight.
Reddit, Mastodon, and CTI community discussion around this family.