SynAck

Also known as: Syn Ack, SynAck

The ransomware does not use a customized desktop wallpaper to signal its presence, and the only way to discover that SynAck has infected your PC is by the ransom notes dropped on the user’s desktop, named in the format: RESTORE_INFO-[id].txt. For example: RESTORE_INFO-4ABFA0EF.txt In addition, SynAck also appends its own extension at the end of all files it encrypted. This file extensions format is ten random alpha characters for each file. For example: test.jpg.XbMiJQiuoh. Experts believe the group behind SynAck uses RDP brute-force attacks to access remote computers and manually download and install the ransomware.

Introduction

The ransomware does not use a customized desktop wallpaper to signal its presence, and the only way to discover that SynAck has infected your PC is by the ransom notes dropped on the user’s desktop, named in the format: RESTORE_INFO-[id].txt. For example: RESTORE_INFO-4ABFA0EF.txt In addition, SynAck also appends its own extension at the end of all files it encrypted. This file extensions format is ten random alpha characters for each file. For example: test.jpg.XbMiJQiuoh. Experts believe the group behind SynAck uses RDP brute-force attacks to access remote computers and manually download and install the ransomware.

Activities and Tactics

Information pending cataloguing.

Notable Campaigns

Information pending cataloguing.

Tactics, Techniques, and Procedures (TTPs)

Information pending cataloguing.

Notable Indicators of Compromise (IOCs)

No curated IOCs are currently published for this actor. This section will be updated when stable, attributable indicators are available.

Malware and Tools

  • RemoteCMD:
  • Xpert:
  • Remote Utilities:
  • RemotePC:
  • DesktopNow:

Attribution and Evidence

Information pending cataloguing.

References

References pending cataloguing.