
Dragonfly
Also known as:TEMP.Isotope · DYMALLOY · Berserk Bear · TG-4192 · Crouching Yeti · IRON LIBERTY · Energetic Bear · Ghost Blizzard · BROMINE
Overview
Dragonfly is a cyber espionage group that has been attributed to Russia's Federal Security Service (FSB) Center 16. Active since at least 2010, Dragonfly has targeted defense and aviation companies, government entities, companies related to industrial control systems, and critical infrastructure sectors worldwide through supply chain, spearphishing, and drive-by compromise attacks.
Naming & attribution
Dragonfly is tracked under 10 names across the industry. It uses 56 documented ATT&CK techniques — more than 86% of the 174 groups tracked here. Activity attributed since at least 2010.
| Name | First reported by |
|---|---|
| TEMP.Isotope | Hultquist, J |
| DYMALLOY | UK Gov |
| Berserk Bear | Slowik, J |
| TG-4192 | Secureworks |
| Crouching Yeti | Secureworks |
| IRON LIBERTY | Secureworks |
| Energetic Bear | Symantec Security Response |
| Ghost Blizzard | Microsoft |
| BROMINE | Microsoft |
| Dragonfly | Symantec Security Response |
Distinctive techniques
Techniques this group uses that are rare across the other 173 tracked groups — these carry more signal than the near-universal ones.
T1187Forced Authentication — used by 2 of 174 groupsT1564.002Hidden Users — used by 2 of 174 groupsT1591.002Business Relationships — used by 3 of 174 groups
Closest groups by technique overlap
Computed from shared ATT&CK techniques. Overlap is not attribution — distinct actors converge on the same tradecraft — but a high share is a useful pivot.
- Threat Group-3390 China — 27 shared techniques (31% overlap)
- APT41 China — 31 shared techniques (29% overlap)
- menuPass China — 23 shared techniques (29% overlap)
- APT39 Iran — 24 shared techniques (28% overlap)
- Wizard Spider Russia — 24 shared techniques (25% overlap)
- APT28 Russia — 29 shared techniques (24% overlap)
Targets
Energy · Government · Private sector
Regions
China · France · Germany · Ireland · Italy · Japan · Poland · Spain · Turkey · United States
Capabilities
- Supply-chain compromise — ATT&CK T1195.002
- Exploitation of public-facing / client applications — ATT&CK T1190, T1203
TTPs — 56 techniques across 12 tactics
Reconnaissance
T1591.002Business RelationshipsT1595.002Vulnerability ScanningT1598.002Spearphishing AttachmentT1598.003Spearphishing Link
Resource Development
T1583.001DomainsT1583.003Virtual Private ServerT1584.004ServerT1588.002ToolT1608.004Drive-by Target
Initial Access
T1189Drive-by CompromiseT1190Exploit Public-Facing ApplicationT1195.002Compromise Software Supply ChainT1566.001Spearphishing Attachment
Execution
T1053.005Scheduled TaskT1059Command and Scripting InterpreterT1059.001PowerShellT1059.003Windows Command ShellT1059.006PythonT1203Exploitation for Client ExecutionT1204.002Malicious File
Persistence
T1098.007Additional Local or Domain GroupsT1133External Remote ServicesT1136.001Local AccountT1505.003Web ShellT1547.001Registry Run Keys / Startup Folder
Stealth
T1036.010Masquerade Account NameT1070.004File DeletionT1078Valid AccountsT1221Template InjectionT1564.002Hidden Users
Defense Impairment
T1112Modify RegistryT1685.005Clear Windows Event LogsT1686Disable or Modify System Firewall
Credential Access
T1003.002Security Account ManagerT1003.003NTDST1003.004LSA SecretsT1110Brute ForceT1110.002Password CrackingT1187Forced Authentication
Discovery
T1012Query RegistryT1016System Network Configuration DiscoveryT1018Remote System DiscoveryT1033System Owner/User DiscoveryT1069.002Domain GroupsT1083File and Directory DiscoveryT1087.002Domain AccountT1135Network Share Discovery
Lateral Movement
T1021.001Remote Desktop ProtocolT1210Exploitation of Remote Services
Collection
T1005Data from Local SystemT1074.001Local Data StagingT1113Screen CaptureT1114.002Remote Email CollectionT1560Archive Collected Data
Command and Control
T1071.002File Transfer ProtocolsT1105Ingress Tool Transfer
Tools & malware (10)
MCMD · Net · Impacket · CrackMapExec · Reg · Backdoor.Oldrea · Mimikatz · PsExec · Trojan.Karagany · netsh