Home Malware Programs Ransomware Yyto Ransomware

Yyto Ransomware

Posted: May 31, 2017

Threat Metric

Threat Level: 10/10
Infected PCs: 71
First Seen: May 31, 2017
OS(es) Affected: Windows

The Yyto Ransomware is a Trojan that tries to extort payments from its victims after locking their files. Unlocking your content with a decryptor may be possible but is less reliable than having backups to allow you to restore all files without needing to break the Yyto Ransomware's cipher. For most users, up-to-date anti-malware protection should let them delete the Yyto Ransomware before any file-blocking behavior occurs.

Trojans Riding on the Back of Forged Mail

File-encoding Trojans aren't difficult to program necessarily but may be difficult to distribute to targets that can pay the expensive ransoms con artists often crave. With most Trojan campaigns, the threat actors work around any security barriers by employing their victims in the infection process indirectly, such as by disguising their files as safe ones. One method malware experts see recurring weekly is that of spam e-mail campaigns promoting threats like the Yyto Ransomware.

The first attacks by the Yyto Ransomware's threat actors appear to date to the last week of May. The Yyto Ransomware infections strongly correlate with forged e-mail messages, including ones using harvested contact information to disguise their corrupted links and attachments. However, unlike most threats installed via e-mail, the Yyto Ransomware also is verifiable by malware experts for attacking non-business systems, such as university networks and recreational computers.

When it gains access to a compatible Windows PC, the Yyto Ransomware scans for documents and other, similarly 'personal' formats of data, and encrypts them with a custom cipher. A supporting function of the attack also appends the 'yyto' extension at the end of every filename along with the name of the Yyto Ransomware's ransom note. This text message redirects any readers to a TOR-based e-mail service for paying to unlock the content.

Kicking out a Fake Windows Program before Damage is Done

Besides its relationship with the suspicious e-mail activities that may be installing it or enabling further attacks, malware researchers also confirm the Yyto Ransomware for using Windows component-based disguises. Victims should look for unusual behavior from supposedly standard OS files or processes, in particular, svchost.exe. However, symptoms may be sporadic or entirely non-visible until after a file-encrypting Trojan finishes encoding its targets.

Research into the Yyto Ransomware's encryption methodology, and whether it's susceptible to decoding for free, is incomplete. For anyone uninterested in taking the risk of losing their files or paying ransoms to retrieve them, malware researchers advise keeping backups on another device heavily. Anti-malware products also can be updated to optimize their ability to delete the Yyto Ransomware before an infection.

Many Trojans with encryption-based payloads use TOR to protect the identities of their threat actors. With attacks like the Yyto Ransomware's campaign only increasing that emphasis and the protection for their makers, a victim's best safeguards remain the ones based on foresight.

Use SpyHunter to Detect and Remove PC Threats

If you are concerned that malware or PC threats similar to Yyto 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.

Download SpyHunter's Malware Scanner

Note: SpyHunter's free version is only for malware detection. If SpyHunter detects malware on your PC, you will need to purchase SpyHunter's malware tool to remove the malware threats. Learn more on SpyHunter. If you would like to uninstall SpyHunter for any reason, please follow these uninstall instructions. To learn more about our policies and practices, visit our EULA, Privacy Policy and Threat Assessment Criteria .

Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.

Technical Details

File System Modifications

Tutorials: If you wish to learn how to remove malware components manually, you can read the tutorials on how to find malware, kill unwanted processes, remove malicious DLLs and delete other harmful files. Always be sure to back up your PC before making any changes.

The following files were created in the system:

7d9905b31f8a7c607c5b901690f77ae2 File name: 7d9905b31f8a7c607c5b901690f77ae2
Size: 446.46 KB (446464 bytes)
MD5: 7d9905b31f8a7c607c5b901690f77ae2
Detection count: 96
Group: Malware file
Last Updated: May 31, 2017