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Cryptowall Ransomware Spreading Rapidly through Malicious Advertisements

Cryptowall Ransomware Spreading Rapidly through Malicious Advertisements

Jun 06, 2014
Ransomware is an emerging threat in the evolution of cybercriminals techniques to part you from your money. Typically, the malicious software either lock victim's computer system or encrypt the documents and files on it, in order to extort money from the victims. Though earlier we saw the samples of Ransomware tended to be simple with dogged determinations to extort money from victims. But with the exponential rise in the samples of Ransomware malwares, the recent ones are more subtle in design, including Cryptolocker , Icepole , PrisonLocker , CryptoDefense and its variants. Now, the ransomware dubbed as Crytowall , a latest variant of the infamous ransomware Cryptolocker is targeting users by forcing them to download the malicious software by through advertising on the high profile domains belonging to Disney, Facebook, The Guardian newspaper and others. Cryptolocker is designed by the same malware developer who created the sophisticated CryptoDefense ( Trojan.Crypt
Dumb Ransomware Developer leaves Decryption Keys on Infected Computers

Dumb Ransomware Developer leaves Decryption Keys on Infected Computers

Apr 02, 2014
So, How do Hackers compromise a Website? Simply by exploiting the flaws in it, that means they took advantage of the error in the developers' code. Now, this time the hackers itself has left behind a crucial flaw in its malware code which can be exploited by us to help save our computer systems. Believe me, it's not an April Fools' joke! A malicious software program that holds the victims' computer files hostage by wrapping them with strong encryption until the victim pays a ransom fee to get them decrypted, has a critical flaw in its malware code itself that it leaves the decryption key on the victim's computer. The Anti-virus firm Symantec examined a sophisticated malware program dubbed as CryptoDefense (Trojan.Cryptodefense) ransomware , which appeared in the end of the last month. CryptoDefense is one of the complex malware programs that include a number of effective techniques, including Tor anonymity tool usage and Bitcoin digital currency to extort money from victims. Cryp
Making Sense of Operational Technology Attacks: The Past, Present, and Future

Making Sense of Operational Technology Attacks: The Past, Present, and Future

Mar 21, 2024Operational Technology / SCADA Security
When you read reports about cyber-attacks affecting operational technology (OT), it's easy to get caught up in the hype and assume every single one is sophisticated. But are OT environments all over the world really besieged by a constant barrage of complex cyber-attacks? Answering that would require breaking down the different types of OT cyber-attacks and then looking back on all the historical attacks to see how those types compare.  The Types of OT Cyber-Attacks Over the past few decades, there has been a growing awareness of the need for improved cybersecurity practices in IT's lesser-known counterpart, OT. In fact, the lines of what constitutes a cyber-attack on OT have never been well defined, and if anything, they have further blurred over time. Therefore, we'd like to begin this post with a discussion around the ways in which cyber-attacks can either target or just simply impact OT, and why it might be important for us to make the distinction going forward. Figure 1 The Pu
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