Whycry Ransomware Spotted in the Wild
The SonicWall Threats Research team observed reports of a new variant family of Whycry Ransomware [GAV: Whycry.RSM] actively spreading in the wild.
Whycry encrypts the victims files with a strong encryption algorithm until the victim pays a fee to get them back.
Once the computer is compromised a fake Windows Update Screen will show up, to try and trick targets into leaving their PC running:
The Malware encrypts all personal documents and files it shows the following webpage:
The malware states that your files are encrypted and that you must pay $300 US dollars in the Bitcoin currency for potentially unlocking your files. Also, there is a threat that states that if you turn off your computer you will lose your files, but that threat it’s empty.
During our research we discovered the malware uses a master key for its own decryption:
SonicWall Gateway AntiVirus provides protection against this threat via the following signatures:
- GAV: Whycry.RSM (Trojan)