Home Malware Programs Ransomware 'Help50@yandex.ru' Ransomware

'Help50@yandex.ru' Ransomware

Posted: April 4, 2017

Threat Metric

Threat Level: 8/10
Infected PCs: 37
First Seen: April 4, 2017
Last Seen: January 21, 2020
OS(es) Affected: Windows

The 'Help50@yandex.ru' Ransomware is a Trojan that encrypts your files for ransom money. Victims are unable to use any of the content that the 'Help50@yandex.ru' Ransomware encrypts, in addition to experiencing symptoms such as the appearance of extortion-related messages and unwanted filename changes. While most anti-malware programs should delete the 'Help50@yandex.ru' Ransomware as soon as they detect it, keeping backups can alleviate any file loss that a successful infection causes.

Old Encryption Attacks Coming to the Foreground Again

It's not for nothing that many file-encrypting Trojans are using the AES and RSA encryption methods to attack their victims' data and keep it from being retrievable. While such methods of enciphering are highly reliable, and, typically, not subject to being cracked, others can be less so. However, some threat actors still prefer using alternatives like XOR ciphers, which malware experts note in the Pclock, the Cryptolocker3 Ransomware, and the particularly new 'Help50@yandex.ru' Ransomware. No clear connections are visible between the 'Help50@yandex.ru' Ransomware and these similar threats.

The 'Help50@yandex.ru' Ransomware's payload includes a function for scanning for files such as PDF, TXT, or DOC, and encoding them to prevent other applications from opening them. Besides being unreadable, you can isolate the encoded media from the '.dat' extensions that the 'Help50@yandex.ru' Ransomware adds. Malware experts can't confirm any secondary encryption method to protect the XOR algorithm, which means that the locked content could, theoretically, be recoverable.

Besides its personal, executables, the 'Help50@yandex.ru' Ransomware also places a text file on your PC, which contains its only ransoming information: the threat actor's e-mail address. While no other information is available on its extortion demands, con artists request payments through methods that the victim can't cancel ordinarily, and don't always give them a real decryptor.

The Only Help Anyone Needs against File-Encrypting Ransoms

Strictly XOR-based enciphering Trojans may be subject to having free decryptors provided by the researchers in the anti-malware sector, allowing even victims with no other options to recover without a ransom. Despite the relative viability of such recovery strategies, malware experts encourage backing up any content that you can't afford to lose, which makes recovering from a 'Help50@yandex.ru' Ransomware a guaranteed and easy procedure. While the Windows Shadow Copies are sometimes available for restoring any encoded content, some Trojans can delete them automatically, which makes them less dependable than other forms of backups.

Threat actors may use spam e-mails to install the Trojans of the 'Help50@yandex.ru' Ransomware's classification. Other infection methods used to a lesser extent include website EKs (Exploit Kits), brute-force password attacks and even freeware bundles. Maintaining safe Web-surfing habits and having anti-malware programs to detect and remove the 'Help50@yandex.ru' Ransomware, and threats like it can rule out most of these vulnerabilities.

The 'Help50@yandex.ru' Ransomware isn't high on the bustling list of file-encrypting Trojans to be reported but is no more or less harmful than threats like the Jigsaw Ransomware or the CryptoLocker. If anything, the eagerness of threat actors to continue designing new threats of the same type is a clear sign of how well harmful encryption works as a way of commanding misappropriated profits.

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