Description
Quasar is an open source remote access trojan written in C sharp that gives operators remote desktop control, file management, credential theft, and reverse proxy capabilities on infected systems. Its free availability made it popular with both administrators and cyberattackers, and its builders and modified editions circulate widely. Intrusion crews frequently deploy it for full remote access after phishing or loader based initial access.
Stats
- First seen
- April 2022
- Last seen
- October 2026
Alert name variants
| Alert Name |
|---|
| ByteCode-MSIL.Backdoor.Quasar |
| ByteCode-MSIL.Spyware.Quasar |
| ByteCode-MSIL.Trojan.Quasar |
| Linux.Backdoor.Quasar |
| Script-BAT.Backdoor.Quasar |
| Script-JS.Backdoor.Quasar |
| Trojan.Linux.Quasar.A |
| Win32.Backdoor.Quasar |
| Win32.Exploit.Quasar |
| Win32.Ransomware.Quasar |
Related IPS Signatures
| Signature Name |
|---|
| MALWARE-CNC QUASAR.LINUX.C2 registration detected |