Combo Ransomware is new reincarnation of Dharma/Cezar/Crysis Ransomware family. The successor of Arrow and Bip Ransomware. This version appends complex extension, that ends with .combo or .cmb and contains e-mail address and unique ID. Combo Ransomware encrypts all sensitive files including documents, images, videos, databases, archives, project files, etc. Windows files stay untouched for stable operation. Combo Ransomware uses AES-256 encryption, which makes the victim’s files inaccessible without decryption key. As for today, decryption is not possible, however, you can attempt to decrypt files from backups or trying file recovery software. There is also chance of decryption after using methods explained in this article.
KEYPASS Ransomware is one of the varieties of STOP Ransomware, described by our team earlier. Virus already attacked users from 25 countries including Brazil, Chile, Vietnam, USA, United Arab Emirates, Egypt, Algeria, Indonesia, India, Iran, Poland, Belarus, Ukraine. This variation uses uses symmetric and asymmetric cryptography and adds .KEYPASS extension to the files after encryption. Intruders demand $300 ransom for decryption. They offer to decrypt up to 3 random files for free, to prove that decryption is possible. Hackers also warn, that if amount is not paid within 72 hours data restoration will be impossible.
Nozelesn Ransomware is new type of ransomware, that uses AES-128 encryption to encode user files. It appends .nozelesn extension to “in cipher” files. According ro researchers Nozelesn Ransomware firstly targeted Poland, but then expanded to other european countries. After successful encryption virus drops HOW_FIX_NOZELESN_FILES.htm file with ransom-demanding message on the desktop and in the folders with affected files. The price for decryption is 0.10 BitCoins, that is currently ~$650. Malefactors promise to send decryption key within 10 days. However, cybercrooks cannot be trusted as, according to our experience, oftne do not hold out promises not to put their encryption algorithm at risk. At the moment of writing this article there is no decryptors released, but we keep abreast of the situation.
JobCrypter Ransomware is crypto-virus ransomware based on Hidden Tear code. Virus adds .locked or .css extension sto encrypted files. This crypto-extortioner encrypts user data using 3DES, and then requires a redemption to return the files back. Judging by the text of the demand for the ransom, JobCrypter is focused only on French users. However, it is noteworthy that many infected JobCrypter PCs were in Lithuania. To remove the blocking of files, the affected party needs to pay a ransom of 300 euros from the PaySafeCard.
Updated version of STOP Ransomware ransomware appends .PAUSA, .CONTACTUS, .DATASTOP or .STOPDATA suffixes to encrypted files. Virus still uses RSA-1024 encryption algorithm. All versions, except .STOPDATA, demand $600 ransom in BTC (BitCoin cryptocurrency), last one offers decryption for $200. Still malefactors offer to decrypt from 1 to 3 files for free to prove, that decryption is possible. This can be used to attempt decoding in future. At the moment, unfortunately, the only way to restore your files is from backups.