'.odin File Extension' Ransomware

Posted: September 27, 2016

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Threat Level:	8/10
Infected PCs:	108

First Seen:	September 27, 2016
Last Seen:	November 25, 2021
OS(es) Affected:	Windows

The '.odin File Extension' Ransomware is a Trojan built off of the preexisting code of the '.locky File Extension' Ransomware (or simply Locky). The '.odin File Extension' Ransomware uses a combination of the AES-RSA encryption method to encode and block your files while preventing you from identifying the key for decrypting them back to their prior formats. Until safe decryption solutions for this family become available, PC owners should use backups to mitigate any file damage and anti-malware software for stopping the '.odin File Extension' Ransomware's encryption attacks from succeeding.

The Touch of the Wrong God on Your Files

Like the anti-malware products that counter them, threatening programs aren't static, which readers can discern easily by the rapid evolution of updates, variants, clones, and copycats of similar threats, regarding threatening file encryptors particularly. Trojans specializing in this form of attack often derive themselves from primary sources that offer the majority of their code, but with enough changes to make previous anti-malware solutions less effective against them. For example, the '.odin File Extension' Ransomware, as an updated release of the Locky Ransomware and the Zepto Ransomware.

The '.odin File Extension' Ransomware still uses the ubiquitous infection vector of e-mail messages for distributing its installers, with messages designed for luring victims into opening threatening attachments (often disguising themselves as a business or delivery-related document). With its installation's success, the '.odin File Extension' Ransomware combines an AES algorithm for encoding your files, along with RSA for protecting the decryption code. The '.odin File Extension' Ransomware also drops ransom messages on the PC's desktop.

Most, but not all changes between the '.odin File Extension' Ransomware and previous versions of the '.locky File Extension' Ransomware are aesthetic. Malware experts can outline the following as the most noticeable differences:

The Trojan generates different ransom instructions (with names such as '_HOWDO_text.html') and includes a BMP image, along with two HTML Web pages.
Perhaps most visibly, the '.odin File Extension' Ransomware changes the extension of each encrypted file to '.odin,' after the Norse deity, rather than the previous '.locky' or '.zepto' extensions. Like other members of its family, the '.odin File Extension' Ransomware continues renaming the content with randomly-generated strings in addition to the extension swap.
The types of data the '.odin File Extension' Ransomware targets are slightly different from that of the '.locky File Extension' Ransomware. Although it doesn't damage the operating system's essential components, malware analysts can corroborate that the Trojan does target nearly four hundred extensions worth of information, including many, lesser-victimized formats, such as WAD, DOT, CSV, RDB, MEF, ERBSQL, XIS and FRM.

Excising the Name of Antiquated Religion from Your Data

Since the '.odin File Extension' Ransomware's family has a history of (albeit inconsistently) erasing the Windows default backups, PC users shouldn't anticipate being able to use local backups to restore their encrypted content. The '.odin File Extension' Ransomware encryption attacks also may affect unprotected drives that it can access via network connections, and removable devices (USB thumb drives or disc storage) are similarly at risk. No public decryption product has been released to counteract the '.odin File Extension' Ransomware or other variants of the '.locky File Extension' Ransomware, which could leave PC users without better protection with no choice but to pay the ransom demands and hope for a good faith transaction of the decryptor.

PC operators should scan potentially toxic files before executing them, particularly for content fitting the profile of well-known infection vectors, such as fake delivery invoices. Although the '.odin File Extension' Ransomware does include updates making it cover a wider variety of information with its encryption attacks, malware analysts find no significant changes in its distribution philosophy, meaning that victims can protect themselves via the previously upheld standards in safe online behavior.

If possible, keep anti-malware tools active in memory for stopping or removing the '.odin File Extension' Ransomware before it can encrypt any data, and avoid paying fees to purchase possibly non-working decryptors. Unfortunately, victims can no longer rely on saving in unpopular formats to keep their files safe from being struck by the lightning bolt of file-encrypting Trojans.

Use SpyHunter to Detect and Remove PC Threats

If you are concerned that malware or PC threats similar to '.odin File Extension' Ransomware may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.

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