Once it detects a file that matches the extension, the file is encrypted using a public key, and sends a message to you demanding a ransom to decrypt the files, usually between $100 and $300. The cybercriminal tries to trick you into opening the email by offering tracking information, or other false important-looking messages in the email or subject line.Ĭryptolocker targets the following file extensions: With Window’s hidden extensions feature, it’s simple for the attacker to add “.pdf” to the end of the file. The zip file contains executables that appear to be PDF files with a PDF icon. The email contains a zip attachment that infects your computer immediately after opening it. The infection is usually spread through an attachment to a phishing message that’s disguised as a business or customer-support related email from businesses like FedEx, UPS, Xerox, prominent banks, or others. It’s important to know that there are ways to prevent this, and mitigate the damage if your computer is already infected.Ĭryptolocker uses social engineering to attack your computer. When these files are encrypted you can’t open them. IMPORTANT INFORMATION FOR ALL COMPUTER/INTERNET USERS!Ī huge threat is spreading throughout the Internet a ransomware that can encrypt your hard drive plus personal or business files such as images, documents, and spreadsheets stored in your computer.
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