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5H311 1NJ3C706 Ransomware

Posted: October 3, 2018

The 5H311 1NJ3C706 Ransomware is a file-locker Trojan that may block your media files by encrypting them and creates pop-up warnings asking for a ransom. Since this threat uses a hard-coded password for its decryption feature, the users should avoid the ransom payment and use either the built-in decryptor or a backup for recovering any media. Users can keep their PCs safe by updating their anti-malware programs and keeping them active for deleting the 5H311 1NJ3C706 Ransomware as quickly and safely as possible.

A Trojan Bleeding Your Files Out for Money

A threat actor is borrowing the not-highly-renowned name of a small-time group of hackers, Bloodsec International, for delivering his otherwise unremarkable campaign of encrypting files and holding them for ransom. The 5H311 1NJ3C706 Ransomware operates most similarly to the Jigsaw Ransomware or other screen-locking threats, like the SkullLocker Screenlocker, although malware researchers find no compelling evidence of its being a real relative. Besides locking local content, the 5H311 1NJ3C706 Ransomware also displays highly emotive warning messages for forcing its victims into paying.

The 5H311 1NJ3C706 Ransomware appends '.5H11 1NJ3C706' extensions onto the victim's files while it encrypts them, although both features include some indicators of being incomplete or bugged. Whether or not this Windows program completes the above task, the 5H311 1NJ3C706 Ransomware also launches a screen-sized pop-up, similar to that of Jigsaw Ransomware. Besides a 'Blood Security Hackers' logo, the 5H311 1NJ3C706 Ransomware also displays a countdown, a set of instructions for its Bitcoin ransom, and buttons for coordinating the payment and decryption of your files.

The fact that the 5H311 1NJ3C706 Ransomware keeps its decryption feature bundled with the rest of the file-locker Trojan is a potentially helpful design choice for any victims. The 5H311 1NJ3C706 Ransomware uses a preset password for unlocking the decryptor, which, for now, malware experts confirm is set to the '666HackerThn' text string. Using that password is a viable data-unlocking option without paying, even for anyone who doesn't have a secure backup.

Keeping a 'Bloodsec' Trojan's Profits Bone-Dry

It's not likely that the 5H311 1NJ3C706 Ransomware has a genuine connection to any members of the hacking group that's responsible for Bloodsec-themed attacks against various websites. Additionally, using a hard-coded instead of a dynamic password makes it obvious relatively that the 5H311 1NJ3C706 Ransomware's threat actor isn't one of the more experienced members of the underground industry. However, the 5H311 1NJ3C706 Ransomware is still capable of damaging files and, depending on any future updates, may do so without giving the user any way of decrypting them.

Users should keep additional backups on devices that are safe against wiping, encryption, or corruption by file-locker Trojans, including independent threats like the 5H311 1NJ3C706 Ransomware, as well as families such as the Jigsaw Ransomware, EDA2, Hidden Tear, or the Crysis Ransomware. Protect your PC from attacks with any of the following safety measures:

  • Scan all downloads from traditionally non-secure sources, including e-mail attachments and torrents that may harbor Trojan droppers or similar threats.
  • Always update Word, Adobe's PDF Reader, your preferred Web browser, and other software that's at risk of being exploitable for drive-by-download attacks. The majority of relevant security vulnerabilities in software are preventable with patches.
  • Protect any at-risk servers with sufficiently secure login credentials, especially, including changing your password to one that's neither default nor a commonly-used string (like 'password123').

Although many anti-malware products flag the 5H311 1NJ3C706 Ransomware as being a version of Hidden Tear, a majority should uninstall the 5H311 1NJ3C706 Ransomware securely and automatically, regardless of how it arrives.

Victims should be glad that the 5H311 1NJ3C706 Ransomware isn't as protective of its decryption mechanisms as most file-locker Trojans end up being. On the other side of things, the existence of more competent competition than the 5H311 1NJ3C706 Ransomware, still, gives everyone reasons for backing their work up to an extra device.

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