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1. MALWAREBYTES ANTI MALWARE FREE KEY FULL
2. MALWAREBYTES ANTI MALWARE FREE KEY SOFTWARE
3. MALWAREBYTES ANTI MALWARE FREE KEY CODE
4. MALWAREBYTES ANTI MALWARE FREE KEY OFFLINE
5. MALWAREBYTES ANTI MALWARE FREE KEY PROFESSIONAL

MALWAREBYTES ANTI MALWARE FREE KEY FULL

It is decrypted by a dedicated function:Īfter decryption, it turns out to be a configuration in JSON format (you can see it full here):Ĭonfiguration is rich in options. The list of vendors is in JSON – this format have been used extensively by Cerber.Īnother interesting unencrypted string was a log, showing the statistics from encryption (the feature used if the malware is deployed in the debug mode):Ĭerber comes with an encrypted resource, stored as RC Data. One of the few strings that hasn’t been encrypted was a check against anti-malware vendors (one of them is Malwarebytes). The decrypting function takes the following parameters: decrypt_string(char* input_buffer, DWORD input_lenght, DWORD key, BOOL is_unicode) It is caused by the fact that the authors decided to encrypt the strings and decrypt them just before the usage.

MALWAREBYTES ANTI MALWARE FREE KEY CODE

Then, we can observe sending UDP requests to a predefined range of IP addresses:Ĭerber samples come packed by some crypters/FUDs, so the code is not readable at first. However, if given opportunity, it can communicate with CnC in order to send statistics from encryption process.įirst, it fetches geolocation info (in JSON format) of the local computer by querying a genuine service: http:/ipinfo.io/json Network communicationĬerber can manage well without CnC and accomplish its task offline.

MALWAREBYTES ANTI MALWARE FREE KEY SOFTWARE

To decrypt your files you need to buy the special software - >. The time to an increase in the ransom price is counted from the first access to this website. These pages contain further instructions to the victim and support for managing payments. Although the ransom note is available only in English, the Tor website can be customized to several languages: SAPI.Speak "Your documents, photos, databases and other important files have been encrypted!"Įach victim has a Web page that can be accessed via Tor. SAPI.Speak "Attention! Attention! Attention!" It comes also with a VB macro that is supposed to speak up the message with the help of a local text-to-speech emulator: Set SAPI = CreateObject("SAPI.SpVoice") We can only speculate what they wanted to convey – to share their own motto, or to console the victim of the attack? Your documents, photos, databases and other important files have been encrypted!Īt the bottom of the ransom note attackers added a quote in Latin: «…Quod me non necat me fortiorem facit.» (“What doesn’t kill me, makes me stronger”). After encryption size of the file content is increased about 384 bytes* – it may suggest, that the RSA encrypted AES key is appended to the file (*depending on the file this value may vary a bit, probably because of various padding).Īfter executing it displays a ransom note in two forms: HTML and TXT. Below: visualization of bytes of square.bmp : left – original, right encrypted with Cerber:Ĭontent of the encrypted file is different on every encryption – probably keys are dynamically generated. The encrypted content has a high level of entropy and no patterns are visible. Files that have been encrypted are fully renamed and appended with the extension typical for this ransomware.

MALWAREBYTES ANTI MALWARE FREE KEY OFFLINE

Encryption processĬerber can encrypt files in offline mode – it means it doesn’t need to fetch the key from the CnC server. However, when the encryption finishes successfully, the dropped sample is deleted.

MALWAREBYTES ANTI MALWARE FREE KEY PROFESSIONAL

Both are named after powerful beasts and both are prepared in a professional way. We have seen Chimera, now we will take a look at Cerber. Ransomware authors seem to love mythological creatures.