A week in security (April 11 – 17)

Last week on Malwarebytes Labs: Credential-stealing malware disguises itself as Telegram, targets social media users Old Play Store apps served notice by upcoming API level changes Denonia cryptominer is first malware to target AWS Lambda Ransomware: March 2022 review Why identity management...

How to recover files encrypted by Yanluowang

Yanluowang is a type of targeted ransomware discovered by the Symantec Threat Hunter team as they were investigating an incident on a large corporate network. Kaspersky experts have found a vulnerability in the Yanluowang encryption algorithm and created a free decryptor to help victims of this...

New Hacking Campaign Targeting Ukrainian Government with IcedID Malware

The Computer Emergency Response Team of Ukraine CERT-UA has warned of a new wave of social engineering campaigns delivering IcedID malware and leveraging Zimbra exploits with the goal of stealing sensitive information. Attributing the IcedID phishing attacks to a threat cluster named UAC-0041, th...

An Investigation of the BlackCat Ransomware via Trend Micro Vision One

We recently investigated a case related to the BlackCat ransomware group using the Trend Micro Vision One™ platform, which comes with extended detection and response XDR capabilities. BlackCat aka AlphaVM or AlphaV is a ransomware family created in the Rust programming language and operated under...

Karakurt Ensnares Conti, Diavol Ransomware Groups in Its Web

Researchers have found financial and technological links between the Karakurt cybercriminal group and two high-profile ransomware actors that signal a shift in business operations and an expansion of opportunities for the threat actors to target victims, they said. Karakurt—a financially motivate...

Conti Ransomware Gang Hits German Wind Turbine Giant Nordex

By Deeba Ahmed All of Nordexs internal IT systems were shut down, and remote access to the turbines was disrupted due… This is a post from HackRead.com Read the original post: Conti Ransomware Gang Hits German Wind Turbine Giant Nordex...

As State-Backed Cyber Threats Grow, Here's How the World Is Reacting

With the ongoing conflict in Eurasia, cyberwarfare is inevitably making its presence felt. The fight is not only being fought on the fields. There is also a big battle happening in cyberspace. Several cyber-attacks have been reported over the past months. Notably, cyber attacks backed by state...

Zloader, another botnet, bites the dust

Microsoft has announced that its Digital Crimes Unit DCU has taken legal and technical action to disrupt a malicious botnet called Zloader. Zloader or Zbot are common names used to refer to any malware related to the ZeuS family. There are a lot of those because the ZeuS banking Trojan source cod...

Microsoft Disrupts ZLoader Cybercrime Botnet in Global Operation

Microsoft and a consortium of cybersecurity companies took legal and technical steps to disrupt the ZLoader botnet, seizing control of 65 domains that were used to control and communicate with the infected hosts. "ZLoader is made up of computing devices in businesses, hospitals, schools, and home...

Dismantling ZLoader: How malicious ads led to disabled security tools and ransomware

As announced today, Microsoft took action against the ZLoader trojan by working with telecommunications providers around the world to disrupt key ZLoader infrastructure. We used our research into this threat to enrich our protection technologies and ensure this infrastructure could no longer be...

Dismantling ZLoader: How malicious ads led to disabled security tools and ransomware

As announced today, Microsoft took action against the ZLoader trojan by working with telecommunications providers around the world to disrupt key ZLoader infrastructure. We used our research into this threat to enrich our protection technologies and ensure this infrastructure could no longer be...

Microsoft Patch Tuesday, April 2022 Edition

Microsoft on Tuesday released updates to fix roughly 120 security vulnerabilities in its Windows operating systems and other software. Two of the flaws have been publicly detailed prior to this week, and one is already seeing active exploitation, according to a report from the U.S. National...

Reporting of cyber incidents becomes law in the USA

On March 15th 2022, president Joe Biden and the US Government passed new legislation to strengthen the Department for Justice DOJ Cybersecurity and Infrastructure Security Agency CISA position by requiring the reporting of all cyber incidents or ransomware payments. The Cyber Incident Reporting f...

Menswear Brand Zegna Reveals Ransomware Attack

High-end Italian fashion house Ermenegildo Zegna revealed on Monday that it was the target of a ransomware attack last August — and that it managed to recover its systems from back-up without paying a ransom. The Milan-based firm already had revealed on Aug. 6, 2021, that it became aware of...

Conti ransomware offshoot targets Russian organizations

Thanks to the Threat Intelligence team for their help with this article. Conti, the infamous ransomware created by a group of Russian and Eastern European cybercriminals, has again made headlines after a hacking group used its leaked source code to create another variant of the ransomware and...

PT-2022-2241

Name of the Vulnerable Software and Affected Versions Windows Common Log File System Driver affected versions not specified Description This issue is an elevation-of-privilege vulnerability affecting the Windows Common Log File System Driver. Successful exploitation could allow attackers to affec...

Ransomware: March 2022 review

The Malwarebytes Threat Intelligence team continuously monitors the threat landscape to stay on top of existing and emerging attacks. In this March 2022 ransomware review, we go over some of the most successful ransomware incidents based on both open source and dark web intelligence. The March da...

Researchers Connect BlackCat Ransomware with Past BlackMatter Malware Activity

Cybersecurity researchers have uncovered further links between BlackCat aka ALPHV and BlackMatter ransomware families, the former of which emerged as a replacement following international scrutiny last year. "At least some members of the new BlackCat group have links to the BlackMatter group,...

Ukrainian FIN7 Hacker Gets 5-Year Sentence in the United States

A 32-year-old Ukrainian national has been sentenced to five years in prison in the U.S. for the individual's criminal work as a "high-level hacker" in the financially motivated group FIN7. Denys Iarmak, who worked as a penetration tester for the cartel from November 2016 through November 2018, ha...

A Bad Luck BlackCat

In early December 2021, a new ransomware actor started advertising its services on a Russian underground forum. They presented themselves as ALPHV, a new generation Ransomware-as-a-Service RaaS group. Shortly afterwards, they dialed up their activity, infecting numerous corporate victims around t...