When the potential victim follows the link, a downloader is placed on the system.The infection starts with an e-mail received by the victim, which contains a link that is connected to a number of compromised domains.We will present shortly the main events that take place in the infection phase: When the user opens the e-mail, the targeted victim is asked to follow a link. If the victim clicks the link, the malicious payload from compromised domains will deliver the encryption tool to the system. You can find below an example of such an e-mail that is sent out to a number of users and which pretends to be an important invoice written in German.

At the same time, the cyber-criminals included CryptoWall code in websites ads in order to increase its online distribution. Like most data-stealing malware and ransomware, CryptoWall spreads mainly through phishing and spam campaigns that invite users to click a malicious link or access an e-mail attachment. Nevertheless, we all expected a comeback, which took place with CTB Locker followed by CryptoWall 3.0, which launched a massive attack on German users at the time.

Cryptowall is usually spread by spam and phishing emails, malicious ads, hacked websites, or other malware and uses a Trojan horse to deliver the malicious payload.ĬryptoWall is an advanced piece of malware, a variant of the previous CryptoLocker, which has been taken down in 2015 by a number of security companies and state agencies across the world. Cryptowall is a ransomware malware that encrypts files on an infected computer using and demands a ransom in exchange for a decryption key.

Panda ransomware decrypt crypto locker