Signal
DragonForce ransomware abuses Microsoft Teams relay servers for command-and-control
Evidence first: scan the strongest sources, then decide whether to go deeper.
Published 2026-06-16 22:18 UTCUpdated 2026-06-17 17:29 UTC
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ransomwaremalwarethreat_actorssecurity_tooling
Trend in the last 24h
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Evidence trail (top sources)
top sources (2 domains)domains are deduped. counts indicate coverage, not truth.2 top sources shown
limited source diversity in top sources
Overview
The DragonForce ransomware group has been observed leveraging Microsoft Teams relay infrastructure to conceal command-and-control (C2) traffic. Attackers deployed a new Go-based backdoor that uses Microsoft Teams servers as a relay to evade detection and maintain communication with compromised systems.
Entities
MicrosoftDragonForce
Score total
1.03
Momentum 24h
2
Posts
2
Origins
2
Source types
1
Duplicate ratio
0%
Why now
- Recent discovery of a new Go-based backdoor using Teams relay servers.
- DragonForce ransomware continues to evolve its tactics to evade defenses.
- Immediate awareness can help organizations adjust security monitoring accordingly.
Why it matters
- Attackers leveraging trusted platforms like Microsoft Teams complicate detection and mitigation.
- Use of legitimate relay servers for C2 traffic shows advanced evasion techniques.
- Highlights the need for monitoring cloud collaboration tools for malicious abuse.
LLM analysis
Topic mix: lowPromo risk: lowSource quality: medium
Recurring claims
- DragonForce ransomware abuses Microsoft Teams relay infrastructure to hide command-and-control traffic
How sources frame it
- SecurityWeek: neutral
- SC Media: neutral
All evidence
All evidence
Attackers drop DragonForce ransomware leveraging MS Teams relay systems
SC Media · scworld.com · 2026-06-17 17:29 UTC
Microsoft Teams Relay Servers Abused in DragonForce Ransomware Attack
SecurityWeek · securityweek.com · 2026-06-17 10:38 UTC
Show filters & breakdown
Posts loaded: 0Publishers: 2Origin domains: 2Duplicates: -
Showing 2 / 0
Top publishers (this list)
- SC Media (1)
- SecurityWeek (1)
Top origin domains (this list)
- scworld.com (1)
- securityweek.com (1)