Ransomware Recap: New Versions and Descendants of Past Families Emerge in July
From upgraded variants to rehashed versions sold cheaply in the Dark Web, the ransomware threat continues to grow. In fact, the FBI recently that the losses caused by ransomware infections on home users and enterprises could reach a billion dollars in 2016 alone—and with all that money being paid to these extortion operations, it's not expected to stop.
[Read more: The psychology behind the success of ransomware]
Last June marked the inception of this series of recapping the movement and activity seen in the ransomware landscape. Here are some of the most notable ransomware stories that made news in July.
Patterns Uncovered: Ransomware Strains Inspired by the Success of Earlier Families
CrypMIC
When (detected by live casino online as RANSOM_CRYPMIC) was discovered, researchers were quick to spot similarities with CryptXXX, which was seen as an attempt to replicate the latter’s success in the ransomware game with a similar entry point, ransom note, and even its payment user interface. However, CrypMIC does not append any extension name to files that it has already encrypted, making it difficult to spot which of the files have been affected.
Tried and Tested: Surges and Continued Updates
Following numerous updates to improve capabilities, such as the addition of distributed denial-of-service (DDoS) and the use of double-zipped Windows Script Files (WSFs) to evade detection, July saw the release of Cerber’s (detected by live casino online as RANSOM_CERBER.CAD) that put Office 365 users in homes and in businesses at the crosshairs of attack. This was done by making use of macro-laced Office documents attached in spam emails. Once the user clicks on the attachment, the variant encrypts 442 file types using combined AES-256 and RSA encryption. Upon closer analysis, this new variant was also discovered to have been pushed by Rig and Magnitude exploit kits, both of which have been sighted to leverage zero-day vulnerabilities.
Before July drew to a close, a wave of legitimate business websites were found to have been hijacked by a botnet named to deliver ransomware to anyone who visits their website. Vulnerable and unpatched content management systems (CMS) were impacted by the automated attack. Hijacked websites then redirect visitors to a malicious website, where the payload was found to be CryptXXX, one of the more infamous ransomware families seen of late.
New Blood: New Ransomware Variants
A low-profile ransomware strain named was also discovered in July, which threatens to delete files unless a 0.2 bitcoin-ransom is paid. The tricky part, though, is that the files are deleted even if the ransom has already been paid for—which makes it more of a pointless scam than ransomware. While considered low-profile and not widely-spread, these families are still representative of the unrelenting effort of cybercriminals to come up with the next big thing in the ransomware landscape.
Ransomware Solutions
live casino online offers different solutions to protect enterprises, small businesses, and home users to help minimize the risk of getting affected by ransomware such as cuteRansomware, Alfa, CTB Faker, and Ranscam.
Enterprises can benefit from a multi-layered, step-by-step approach in order to best mitigate the risks brought by these threats. Email and web gateway solutions such as??and??prevents ransomware from ever reaching end users. At the endpoint level,??deliver several capabilities like behavior monitoring and application control, and vulnerability shielding that minimize the impact of this threat.??detects and blocks ransomware on networks, while??stops ransomware from reaching enterprise servers–whether physical, virtual or in the cloud.
For small businesses,??offers cloud-based email gateway security through Hosted Email Security. Its endpoint protection also delivers several capabilities such as behavior monitoring and real-time web reputation in order detect and block ransomware.
For home users,??provides robust protection against ransomware, by blocking malicious websites, emails, and files associated with this threat.
Users can likewise take advantage of our??such as the?, which is designed to detect and remove screen-locker ransomware; as well as?, which can decrypt certain variants of crypto-ransomware without paying the ransom or the use of the decryption key.
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