Ransomware

CryptoWall

First seen: 2014 • Status: inactive

Currently Inactive

CryptoWall was a ransomware that made hundreds of millions of dollars by copying CryptoLocker tactics and improving them.

Overview

CryptoWall was a successful CryptoLocker successor that generated over $325 million in ransom payments. It used Tor for C2 and continuously evolved its evasion techniques.

Also Known As

Crypto Wall, CryptoDefense

How It Spreads

  • Exploit kits
  • Malvertising
  • Phishing emails

What It Does

  • File encryption
  • Shadow copy deletion
  • Bitcoin ransom demand
  • Tor-based payment

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Target Platforms

Windows

Detection Tips

  • Historical threat - study for ransomware research
  • Understand evolution of ransomware tactics

MITRE ATT&CK Techniques

T1486, T1490, T1189, T1566

If You're Infected

  1. 1.

    CryptoWall is no longer active

  2. 2.

    Standard ransomware recovery applies

Related Malware

Cryptolocker, Locky, Teslacrypt

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