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Mircop Ransomware

Posted: June 28, 2016

Threat Metric

Threat Level: 10/10
Infected PCs: 57
First Seen: June 27, 2016
OS(es) Affected: Windows

The Mircop Ransomware is a combination file encryptor and spyware program that both encrypts your data for ransoming it and collects information from your PC. Unlike similar threats, the Mircop Ransomware claims that its actions are justified by the user's prior theft of Bitcoin funds, although its distribution doesn't seem to be targeting con artists. Malware experts continue recommending non-ransom-based solutions to this Trojan and ones like it, which can protect your data and, if necessary, remove the Mircop Ransomware through safe procedures.

The Anonymous 'Cop' on Your Screen

Any threat campaign requiring some amount of complicity from its victims may make use of any number of social engineering tactics. However, few threats take the Mircop Ransomware's unusual step of accusing victims of being con artists, themselves. Other than that accusation, the Mircop Ransomware is a traditional file encrypting Trojan, with an extra handful of unique elements in how the Mircop Ransomware attacks your PC.

Malware experts find the Mircop Ransomware using the same e-mail spam-based installation points as most threatening file encryptors, which disguise its installer as some form of official notification (such as a Thai customs form). The attachment is an actual document but uses embedded macros for installing the Mircop Ransomware. Windows disables these macros by default, so the PC user would have to re-enable them manually to be at risk.

The Mircop Ransomware consists of three components concealed within the TEMP folder, only two of which are responsible for encrypting your local data. The third file is a spyware component that collects credentials, including passwords and account login names, from your Web browsers. The other two files encrypt the contents of specific folders, after which the Mircop Ransomware loads a ransom note. This image-based message contains the Mircop Ransomware's most unusual trait: an accusation that you've stolen 48.48 Bitcoins and must return them to receive a decryptor for your computer's files.

Giving a Real Thief the Reward He Deserves

As far as the rest of the file encryption Trojan 'industry' is concerned, the Mircop Ransomware isn't a technical achievement. However, malware experts rate the Mircop Ransomware of being somewhat worthy of examining for its unusual social engineering methodology, its inclusion of spyware features, and its atypical encryption format. While most Trojans make changes to the names of each encrypted file, the Mircop Ransomware, instead, adds the 'Lock.' prefix to each affected folder. In any case, the practical results of users being unable to access their encrypted data remain identical.

Another trait of the Mircop Ransomware's that has achieved newsworthy notice is the size of its ransom. Asking for over thirty-one thousand dollars in Bitcoin currency makes it seem as though the Mircop Ransomware's con artists are either unaware of the market value of Bitcoin or are targeting extremely wealthy victims. However, PC operators with access to sufficiently valuable data already should be taking steps for protecting their content with remote backups, which would be unaffected by the Mircop Ransomware's localized attacks.

If allowed to scan the infected PC, your anti-malware products should detect and delete the Mircop Ransomware's three, primary components. However, disinfecting a PC does not decrypt your data or retrieve any information collected by this threat. Passwords and similarly crucial security information should be changed or otherwise re-secured by any means necessary.

Unsurprisingly, no transactions for paying the Mircop Ransomware's overly-generous fee have so far been recorded.

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