Codefinger is a ransomware group that targets Amazon S3 buckets by exploiting AWS’s Server-Side Encryption with Customer Provided Keys to encrypt victim data. They utilize compromised AWS credentials to gain access and demand Bitcoin ransoms for the decryption keys, threatening to delete files if negotiations fail. The group has been observed abusing publicly disclosed AWS keys with permissions to read and write S3 objects, making recovery impossible without their cooperation. Halcyon has documented multiple incidents linked to Codefinger's data extortion campaign against organizations with unsecured infrastructure.
The same group is tracked under different names by different vendors.
| Vendor | Name |
|---|---|
| Various | Codefinger |
No techniques mapped yet.
No IOCs extracted yet from reports naming this actor.
Every report in the Global Intel Library that names Codefinger, newest first. Open any report to see the full analysis with provenance.
No reports in the Lore library name this actor yet.
Indicators from free threat feeds (abuse.ch ThreatFox, AlienVault OTX) attributed to Codefinger. Each row shows why it was linked and where it came from.
No feed indicators linked to this actor yet. Feeds are checked every hour.
Open-source reports about this actor collected from MISP Galaxy.