Ransom.SunCrypt

Ransom.SunCrypt is Malwarebytes’ detection name for a specific Ransomware as a Service (RaaS) variant that uses a very aggressive approach towards its victims.

Ransom.SunCrypt is ransomware. Ransomware in general makes files on the victims system unusable until the ransom is payed. Ransom.SunCrypt not only encrypts a victims files, but also threatens to publish them. The SunCrypt ransomware is distributed as a DLL file and is installed through a heavily obfuscated PowerShell script. In some cases they have been seen partnering with Trickbot  to gain access to compromised networks.

Victims will find the ransome note named: YOUR_FILES_ARE_ENCRYPTED.HTML

When encrypting files, it will append a hexadecimal hash to the end of each file name.

Recovering from a ransomware attack can be a painstaking process even if the victim decides to pay it can take a considerable time to recover without adequate, recent, and organized backups, or a roll-back technology.

Not paying the SunCrypt ransom can lead to exposure of exfiltrated data on the dark web, and DDoS attacks by the SunCrypt affiliates.

Malwarebytes blocks traffic to the C&C server

You can use the Malwarebytes Anti-Malware Nebula console to scan endpoints.

Nebula endpoint tasks menu

Choose the Scan + Quarantine option. Afterwards you can check the Detections page to see which threats were found.

On the Quarantine page you can see which threats were quarantined and restore them if necessary.

All component/technology detections are passed to the remediation engine for complete removal from infected systems. This industry leading technology uses patented techniques in identifying all cohorts or associated files for a single threat and removes them all together to prevent malware from resuscitating itself. If you are using Malwarebytes Ransomware Rollback technology, it allows you to wind back the clock to negate the impact of ransomware by leveraging just-in-time backups.