Osiris.dll file is the harbinger of the menacing Osiris ransomware. This virus belongs to Locky group of infections. It is the latest variation following .aesir, .zzzzz file viruses. This time, the crooks looked for the inspiration in the Egyptian mythology as they named their virus after the god of the dead – Osiris malware. Following the tradition of previous viruses, the current virtual menace prefers executing its activity through .dll command. Since the peculiarities of .dll (Dynamic-Link Library). Allow better communication and interrelation among several programs and apps simultaneously. What is more, it encompasses less space than ordinary .exe files. Likewise, the implementation of this file only strengthened the force of the malware. Let us briefly go through the operation of this malicious files to obtain a better understanding of how to prevent the malware.
In comparison with other ransomware giants, Locky has been evolving at lightning speed. The key strengths of the malware happen to be the employment of AES and RSA encryption algorithms which encode the files with a complex set of numeric ciphers. Likewise, decoding the files without having a decryption tool remains a challenge. Secondly, the current version of the cyber infection grants more flexibility to the malware. Specifically, .dll helps communicate several programs at the time. Specifically, Osiris ransomware starts its operation when VBA macro is enabled. The very threat tries to invade computers via corrupted spam emails. Due to subscriptions to multiple domains, the amount of spam gets uncontrolled. Note that some of them might contain Osiris malware within.
When it succeeds in infiltrating the system, a .dll installation file is downloaded. Interestingly, that the downloaded content will not have .dll file extension but in fact will be disguised as .spe. In order for the file to accomplish its mission, it will use Rundll32.exe system file integrated into Windows operating system. Furthermore, the main files of Locky are downloaded. When the process is complete, the malware starts looking for any potentially important files and encode them.
Ransomware is certainly bad news for any users, companies or ordinary netizens. The attack of Osiris might spark long-lasting effects on the business or private online activity. You can eliminate the threat by scanning your device with a security tool such as Reimage. Speaking of the .dll file, you can delete it manually. However, it will not remove the ransomware completely. Note that Osiris removal does not decode the files.
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