What is Ransomware?
Ransomware is a malicious computer program that encrypts files on your computer, preventing access to them. This is often a result of a compromise of your credentials.
There are many different types of ransomware. Some are more malicious than others. A key element of any good security strategy is to know what type of ransomware you are dealing with.
Ransomware is one of the most widespread forms of malware in the world. In fact, in Q4 of 2019, reports indicate that ransomware payouts more than doubled.
Ransomware can be delivered through malicious URLs, chat messages, and social media. It is also possible for a cybercriminal to buy it from dark web forums. The emergence of cryptocurrencies has made it more tempting for bad actors to purchase ransomware.
When a computer is infected with ransomware, the software is downloaded and executed immediately. It encrypts certain files and tries to delete shadow copies. Once a file is encrypted, it cannot be decrypted without a mathematical key known only by the attacker. This makes it impossible for the operator to restore services.
The threat of losing your data permanently is jarring. That’s why most law enforcement agencies urge victims not to pay ransom. However, if paying a ransom seems necessary, it’s important to understand why it’s being demanded and what you can do to recover your files.
Using legitimate administrative tools, such as Microsoft PsExec, is a good way to prevent ransomware attacks. In addition, segmenting networks can help reduce the risk of a large scale attack.