Browsing tag

ransomware

Flashback: Declassified 1970 DOD cybersecurity document still relevant

The Ware Report’s recommendations still important as proven by ransomware and breaches. The National Security Archives at George Washington University has just added a classic text of computer security to its “Cyber Vault” project—the original version of what came to be known as the “Ware Report,” a document published by the predecessor to the Defense Advanced […]

Petya Ransomware’s Encryption Defeated and Password Generator Released

An individual going by the twitter handle leostone was able to create an algorithm that can generate the password used to decrypt a Petya encrypted computer. In my test this, this algorithm was able to generate my key in 7 seconds. The solution used to generate this key is called a genetic algorithm and is one that that mimics […]

OK, panic—newly evolved ransomware is bad news for everyone

Crypto-ransomware has turned every network intrusion into a potential payday. There’s something inherently world-changing about the latest round of crypto-ransomware that has been hitting a wide range of organizations over the past few months. While most of the reported incidents of data being held hostage have purportedly involved a careless click by an individual on an e-mail […]

TA530 group, spear phishing meets ransomware

A threat actor named TA530 group, has been targeting executives in an attempt to infect their machine with various malware, including ransomware. Ransomware continues to represent one of the greatest threat for the Internet users, the FBI recently issued a confidential urgent “Flash” message to the businesses and organizations about the Samsam Ransomware. Security firms […]

Petya – Taking Ransomware To The Low Level

Petya is different from the other popular ransomware these days. Instead of encrypting files one by one, it denies access to the full system by attacking low-level structures on the disk. This ransomware’s authors have not only created their own boot loader but also a tiny kernel, which is 32 sectors long. Petya’s dropper writes […]

Most prevalent Android ransomware in the West arrives in Japan

Android.Lockdroid ransomware expands to Asia by targeting Japan first. The malware poses as a system update and locks the device from use. One of the most prevalent Android ransomware threats in the West has now expanded to Asia, choosing Japan as its first target. This Android.Lockdroid campaign began in March 11 and poses as a system […]

“PowerWare,” New Ransomware Written in PowerShell, Targets Organizations via Microsoft Word

The Carbon Black Threat Research Team has recently discovered a new family of ransomware, which they dubbed “PowerWare,” that targets organizations via Microsoft Word and PowerShell. PowerShell is the scripting language inherent to Microsoft operating systems. “PowerWare” is a new instance of ransomware utilizing native tools, such as PowerShell on operating systems. “Traditional” ransomware variants […]

Three US hospitals hit by ransomware

The IT systems of three US hospitals have been infected with ransomware, which encrypts vital files and demands money to unlock them. The systems, at Kentucky Methodist Hospital, Chino Valley Medical Center and Desert Valley Hospital, California, are now running normally again. None of the hospitals is believed to have paid the ransom. And the […]

Canadian Hospital Serves Ransomware Via Hacked Website

Ransomware attacks have made a lot of headlines in the past year with several high-profile cases, including that of the Hospital in Los Angeles which had its data encrypted and ended up paying the ransom to get it back. Recently, the Ottawa hospital in Canada was also hit but able to contain a ransomware attack. We discovered […]

“Surprise” Ransomware Uses TeamViewer to Infect Victims

Another ransomware built on the EDA2 project. A new ransomware family was discovered in the past weeks, one that infects users’ computers via poorly secured TeamViewer installations and then encrypts all the their data, adding the “.surprise” extension to all files. The first signs of this new ransomware infection were spotted on the Bleeping Computer forums, a […]

FBI and Microsoft Warn of Samas Ransomware

Ransomware targets corporate networks, not just lone users. A new ransomware family has inflicted enough damage for both Microsoft and the FBI to take notice of its actions, the last issuing a public statement announcement on its site to warn US companies of the dangers surrounding this new threat. Detected under the names of Samas, Kazi, […]

Researchers Trick Radamant Ransomware C&C Server into Revealing Decryption Keys

Security researchers 2, Radamant coder 0.Researchers from InfoArmor, an Arizona-based cyber-security firm, have discovered an SQL injection flaw in the control panel of the Radamant ransomware that allows them to trick the C&C server into starting the decryption process without user interaction or without users paying the ransom. The Radamant ransomware family was first spotted […]

Big-name sites hit by rash of malicious ads spreading crypto ransomware [Updated]

New malvertising campaign may have exposed tens of thousands in the past 24 hours. Mainstream websites, including those published by The New York Times, the BBC, MSN, and AOL, are falling victim to a new rash of malicious ads that attempt to surreptitiously install crypto ransomware and other malware on the computers of unsuspecting visitors, security […]

BitTorrent Client Transmission Infected With World’s First Mac Ransomware KeRanger — How To Protect Yourself

Short Bytes: KeRanger — the world’s first Mac ransomware — has arrived to give you nightmares. Spread via BiTorrent client Transmission, the malware encrypts your computer files and demands a Bitcoin payment to decrypt it. The researchers mention that the malware appears to be under active development and it seems that it also attempts to encrypt […]

First Fully Functional Mac Ransomware Spread via Transmission BitTorrent Client

Someone hijacked the Transmission BitTorrent client project website to spread ransomware to Mac OS X users. Over the weekend, a malicious party has managed to hack the Transmission BitTorrent client for Mac, infecting it with the first ever fully functional ransomware that targets Mac computers, Palo Alto Networks researchers are reporting. The infection occurred on March 4, […]

Medical superbugs: Two German hospitals hit with ransomware

Infection forces patients onto phones and medicos onto faxes. At least two hospitals in Germany have come under attack from ransomware, according to local reports. The alarming incidents follow similar ransomware problems at the US Hollywood Presbyterian Medical Center. Both the Lukas Hospital in Germany’s western city of Neuss and the Klinikum Arnsberg hospital in […]

Admedia attacks now rely also on Joomla to serve ransomware

Operators running websites based on the WordPress and Joomla must be aware of a spike in the number of compromised platforms used in Admedia attacks. Not only WordPress CMS, threat actors behind the “Admedia attacks” are now looking with increasing interest to Joomla. This is the discovery made by the experts at the Internet Storm […]

Locky ransomware on aggressive hunt for victims

Millions of spam emails spread new ransomware variant on the day it first appeared. A new variant of ransomware known as Locky (detected by Symantec as Trojan.Cryptolocker.AF) has been spreading quickly since it first appeared on Tuesday (February 16). The attackers behind Locky have pushed the malware aggressively, using massive spam campaigns and compromised websites. […]