A week in security (October 22 – 28)

Last week on Malwarebytes Labs, we took a look at some new Mac malware, gave you a roundup of 2018 exploit kits, and dispensed some advice on sextortion scams. We also looked at the Cathay Pacific breach, groaned at the revival of an old browser trick, and explained how voting machines and...

ThreatList: Ransomware, EKs and Trojans lead the Way in Q3 Malware Trends

When it comes to malware activity, businesses took a big hit in the third quarter, with detection trending upward by a whopping 55 percent, according to new research. Consumers saw an uptick too, but only a modest one: volume was up just 4 percent quarter-over-quarter for this segment. Overall,...

Exploit kits: fall 2018 review

Exploit kit EK activity continues to surprise us as the weather cools, the leaves change, and we move into the fall of 2018. Indeed, shortly after our summer review, a new exploit kit was discovered, and while no new vulnerabilities were added to the current EKs, several malvertising chains are...

Malwarebytes Labs Cybercrime Tactics and Techniques Report (CTNT) shows shift to business targets in Q3

Once again, it's that time of year: time for the quarterly Malwarebytes Labs Cybercrime Tactics and Techniques Report. Strap in your seat belts, folks, because the third quarter of 2018 was quite a wild ride. After a sleepy first two quarters, cybercriminals shook out the cobwebs and revved up...

Osiris Banking Trojan Displays Modern Malware Innovation

After staying dormant for few years, the Kronos banking trojan resurfaced in July in a form dubbed Osiris. A wider analysis of how the banking trojan is evolving shows innovative development on the part of its authors, with an eye to broader malware trends. Osiris first appeared in July in three...

EKFiddle - A Framework Based On The Fiddler Web Debugger To Study Exploit Kits, Malvertising And Malicious Traffic In General

A framework based on the Fiddler web debugger to study Exploit Kits, malvertising and malicious traffic in general. Installation Download and install the latest version of Fiddler https://www.telerik.com/fiddler Special instructions for Linux and Mac here:...

A week in security (August 6 – August 12)

Last week, we published a review of exploit kits, talked about everyday tech that can give you a headache, and showed how to protect RDP access from ransomware. We also published a study on the true cost of cybercrime. Other news: Discovered at Black Hat: WhatsApp "message manipulation" Source: T...

Exploit kits: summer 2018 review

The uptick trend in cybercriminals using exploit kits that we first noticed in our spring 2018 report has continued into the summer. Indeed, not only have new kits been found, but older ones are still showing signs of life. This has made the summer quarter one of the busiest we've seen for exploi...

ThreatList: Spam’s Revival is Tied to Adobe Flash’s Demise

Spam click-rates are up in 2018. Last year, 13.4 percent of spam messages that made it into inboxes were clicked on. So far, in 2018 that percentage has jumped to 14.2 percent. The numbers come from F-Secure, which reported Wednesday on the sorry state of users’ better judgment when it comes to...

Complex Malvertising Scheme Impacts Multiple Levels of Web Economy

UPDATE A sprawling malvertising campaign that leverages the AdsTerra legitimate online advertising company has been uncovered, involving at least 10,000 compromised websites and driving legions of web visitors around the world to exploit kits. AdsTerra, one of the largest ad networks out there,...

Gandcrab Ransomware Puts Pinch On Victims

ARCHIVED STORY GandCrab Ransomware Puts the Pinch on Victims By Alexandre Mundo · July 31, 2018 Update: On August 9 we added our analysis of Versions 4.2.1 and 4.3. The GandCrab ransomware first appeared in January and has been updated rapidly during its short life. It is the leading ransomware...

New macro-less technique to distribute malware

One of the most common and effective infection vectors, especially for businesses, is the use of malicious Office documents. This year alone, we witnessed two zero-days for both Flash and the VBScript engine, which were first actually embedded into Office documents before gaining wider adoption i...

ThreatList: Exploit Kits Still a Top Web-based Threat

What we can glean from a 2018 roundup of current web-threats is old vulnerabilities die hard. In a report, released by Palo Alto Networks Unit 42, researchers said so far this year cybercriminals are targeting unpatched PCs with ancient CVEs and well-known exploit kits. Here is a ThreatList from...

A week in security (June 11 – June 17)

Last week on Malwarebytes Labs, we discussed how to protect the online privacy of children, we gave you a spring 2018 overview of exploit kits, rounded up the ongoing discussions about the VPNFilter malware, and discussed the struggles of UK law enforcement with modern-day cybercrime. Other news...

Exploit kits: Spring 2018 review

Since our last report on exploit kits, there have been some new developments with the wider adoption of the February Flash zero-day, as well as the inclusion of a new exploit for Internet Explorer. We have not seen that many changes in the drive-by landscape for a long time, although these are th...

Threat Roundup for May 04 - 11

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between May 4 and May 11. As with previous round-ups, this post isn't meant to be an in-depth analysis. Instead, this post will summarize the threats we've observed by highlighting key behavioral characteristics,...

GandCrab Ransomware Found Hiding on Legitimate Websites

The GandCrab ransomware continues to virulently spread and adapt to shifting cyber-conditions, most recently crawling back into relevance on the back of several large-scale spam campaigns. What’s interesting is that GandCrab payload was found hiding on legitimate but compromised websites. These,...

Gandcrab Ransomware Walks its Way onto Compromised Sites

This blog post authored by Nick Biasini with contributions from Nick Lister and Christopher Marczewski. Despite the recent decline in the prevalence of ransomware in the threat landscape, Cisco Talos has been monitoring the now widely distributed ransomware called Gandcrab. Gandcrab uses both...

CVE-2018-4878 case: for a Hong Kong Telecommunications Company website is intrusion investigations-vulnerability and early warning-the black bar safety net

! Earlier, a researchers found that a Hong Kong Telecommunications Company website hacking attack, 3 May 21, Morphisec laboratory on the site of attack to carry out the investigation, investigators eventually found that the telecommunications company of the Group's official website was hacked, th...

A week in security (March 26 – April 01)

Last week, we looked at the thought process behind creating a ransomware decryptor, the inner workings of QuantLoader, the ways one can protect their Android devices, the exploit kits we have encountered this winter, the now-known epidemic of data breaches, the coming of TLS 1.3, and the ways one...