Malware
Yarraq
Yarraq is a ransomware that encrypts files by using asymmetric keys and adding '.yarraq' as extension to the end of filenames.
Yarraq is a Windows malware family.
Background
Yarraq is ransomware that locks files using asymmetric encryption and appends the '.yarraq' extension to each affected filename. When documented, the operator demanded a $2000 payment in exchange for a decryptor that would let victims recover their original files. Victims are directed to reach the attacker through the email address cyborgyarraq@protonmail.ch.
Source: Malpedia (Fraunhofer FKIE).