Microsoft Patches ‘Wormable’ Flaw in Windows XP, 7 and Windows 2003

Microsoft today is taking the unusual step of releasing security updates for unsupported but still widely-used Windows operating systems like XP and Windows 2003, citing the discovery of a "wormable" flaw that the company says could be used to fuel a fast-moving malware threat like the WannaCry...

Exploit kits: spring 2019 review

Exploit kit activity remains fairly unchanged since our last winter review in terms of active distribution campaigns. But this spring edition will feature a new exploit kit and another atypical EK, in that it specifically goes after routers. The main driver behind these drive-by download attacks...

CB TAU Threat Intelligence Notification: JCry Ransomware Pretends to be Adobe Flash Player Update Installer

JCry is a new family of ransomware that has the unique characteristic of being written in the Go programming language and being delivered as multiple executables, each with their own purpose. It was pretending to be an Adobe flash player update installer on a compromised website to lure users to...

A week in security (May 6 – 12)

Last week on Labs, we discussed what to do when you discover a data breach, how 5G could impact cybersecurity strategy, the top six takeaways for user privacy, vulnerabilities in financial mobile apps that put consumers and businesses at risk, and in our series about vital infrastructure, we...

The WannaCry Security Legacy and What’s to Come

May 12 will mark the second anniversary of the WannaCry ransomware cryptoworm attack. It was a troubling time: During the four-day long ordeal, the cryptoworm infected more than 300,000 endpoints among 200,000 separate victims throughout 150 countries. It propagated rapidly through the EternalBlu...

This Week in Security News: Skimming Attacks and Ransomware

Welcome to our weekly roundup, where we share what you need to know about the cybersecurity news and events that happened over the past few days. This week, learn how credit card skimming attacks can impact businesses and how ransomware can use software installations to help hide malicious...

Threat Source newsletter (May 9)

Newsletter compiled by Jonathan Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. If you haven’t yet, there’s still time to register for this year’s Talos Threat Research Summit — our second annual conference by...

Baltimore City Shuts Down Most of Its Servers After Ransomware Attack

For the second time in just over a year, the city of Baltimore has been hit by a ransomware attack, affecting its computer network and forcing officials to shut down a majority of its computer servers as a precaution. Ransomware works by encryption files and locking them up so users can't access...

Baltimore City Shuts Down Most of Its Servers After Ransomware Attack

For the second time in just over a year, the city of Baltimore has been hit by a ransomware attack, affecting its computer network and forcing officials to shut down a majority of its computer servers as a precaution. Ransomware works by encryption files and locking them up so users can't access...

Ukrainian Charged With Launching 100 Million Malicious Ads

A Ukrainian national has been extradited to the U.S. for allegedly operating a five-year-long malvertising scheme – reaching victims with more than 100 million malicious ads worldwide. Oleksii Petrovich Ivanov, 31, appeared in Newark, N.J. federal court on Friday after being extradited to the U.S...

Threat Roundup for April 26 to May 3

Today, Talos is publishing a glimpse into the most prevalent threats we've observed between April 26 and May 03. As with previous roundups, 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...

Oracle WebLogic Exploit-fest Continues with GandCrab Ransomware, XMRig

Malicious activity exploiting the recently disclosed Oracle WebLogic critical deserialization vulnerability CVE-2019-2725 is surging. Even though there’s a patch, tens of thousands of vulnerable machines represent an irresistible target for hackers, according to Unit 42 researchers at Palo Alto...

A week in security (April 29 – May 5)

Last week on Labs we discussed the possible exit scam of dark net market Wall Street Market, how the Electrum DDoS botnet reaches 152,000 infected hosts, we looked at the sophisticated threats plague ailing healthcare industry, a mysterious database that exposed personal information of 80 million...

Ladders, SkyMed Leak Employment, Medical Data for Millions

Cloud storage misconfigurations continue to plague the data-privacy space, as evidenced by the new discovery of employment and health information for millions exposed on the web, wide open to any internet passerby. Two misconfigured cloud databases inadvertently leaked personally identifiable...

Threat Source (May 2, 2019)

Newsletter compiled by Jonathan Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. If you haven’t yet, there’s still time to register for this year’s Talos Threat Research Summit — our second annual conference by...

Sodinokibi ransomware exploits WebLogic Server vulnerability

This blog was authored by Pierre Cadieux, Colin Grady, Jaeson Schultz and Matt Valites Attackers are actively exploiting a recently disclosed vulnerability in Oracle WebLogic to install a new variant of ransomware called "Sodinokibi." Sodinokibi attempts to encrypt data in a user's directory and...

Hackers Found Exploiting Oracle WebLogic RCE Flaw to Spread Ransomware

Taking advantage of newly disclosed and even patched vulnerabilities has become common among cybercriminals, which makes it one of the primary attack vectors for everyday-threats, like crypto-mining, phishing, and ransomware. As suspected, a recently-disclosed critical vulnerability in the widely...

Hackers Found Exploiting Oracle WebLogic RCE Flaw to Spread Ransomware

Taking advantage of newly disclosed and even patched vulnerabilities has become common among cybercriminals, which makes it one of the primary attack vectors for everyday-threats, like crypto-mining, phishing, and ransomware. As suspected, a recently-disclosed critical vulnerability in the widely...

New 'Sodinokibi' Ransomware Exploits Critical Oracle WebLogic Flaw

A recently-disclosed critical vulnerability in Oracle WebLogic is being actively exploited in a slew of attacks, which are distributing a never-before-seen ransomware variant. The recently-patched flaw exists in Oracle’s WebLogic server, used for building and deploying enterprise applications. Th...

LockerGoga Ransomware Family Used in Targeted Attacks

ARCHIVED STORY LockerGoga Ransomware Family Used in Targeted Attacks By ATR Operational Intelligence Team · April 29, 2019 Co-authored by Marc RiveroLopez. Initial discovery Once again, we have seen a significant new ransomware family in the news. LockerGoga, which adds new features to the tried...