A week in security (April 24 -30)

Last week on Malwarebytes Labs: LockBit and Cl0p ransomware gangs actively exploiting Papercut vulnerabilities Update now: Critical flaw in VMWare Fusion and VMWare Workstation Magecart threat actor rolls out convincing modal forms Fileless attacks: How attackers evade traditional AV and how to...

Ransomware Hackers Using AuKill Tool to Disable EDR Software Using BYOVD Attack

Threat actors are employing a previously undocumented "defense evasion tool" dubbed AuKill that's designed to disable endpoint detection and response EDR software by means of a Bring Your Own Vulnerable Driver BYOVD attack. "The AuKill tool abuses an outdated version of the driver used by version...

New All-in-One "EvilExtractor" Stealer for Windows Systems Surfaces on the Dark Web

A new "all-in-one" stealer malware named EvilExtractor also spelled Evil Extractor is being marketed for sale for other threat actors to steal data and files from Windows systems. "It includes several modules that all work via an FTP service," Fortinet FortiGuard Labs researcher Cara Lin said. "I...

Adult content malvertising scheme leads to clickjacking

Malwarebytes researchers have found a malvertising scheme that leads to clickjacking. Clickjacking is a form of ad fraud which is also referred to as click fraud or click spam. It is a practice performed by certain dubious advertising networks, where they sometimes use automated programs--from...

New Zaraza Bot Credential-Stealer Sold on Telegram Targeting 38 Web Browsers

A novel credential-stealing malware called Zaraza bot is being offered for sale on Telegram while also using the popular messaging service as a command-and-control C2. "Zaraza bot targets a large number of web browsers and is being actively distributed on a Russian Telegram hacker channel popular...

A week in security (April 10 - 16)

Last week on Malwarebytes Labs: How the cops buy a "God view" of your location data, with Bennett Cyphers: Lock and Code S04E09 Apple releases emergency updates for two known-to-be-exploited vulnerabilities Don't plug your phone into a free charging station, warns FBI KFC, Pizza Hut owner employe...

Massive malvertising campaign targets seniors via fake Weebly sites

Knowing their audience is something scammers excel at, and for very good reason. This is particularly true for tech support scammers whose prime targets are seniors. By understanding what retirees are searching for and abusing various online platforms, crooks can precisely go after the demographi...

Uncommon infection methods—part 2

Introduction Although ransomware is still a hot topic on which we will keep on publishing, we also investigate and publish about other threats. Recently we explored the topic of infection methods, including malvertising and malicious downloads. In this blog post, we provide excerpts from the rece...

CryptoClippy: New Clipper Malware Targeting Portuguese Cryptocurrency Users

Portuguese users are being targeted by a new malware codenamed CryptoClippy that's capable of stealing cryptocurrency as part of a malvertising campaign. The activity leverages SEO poisoning techniques to entice users searching for "WhatsApp web" to rogue domains hosting the malware, Palo Alto...

CryptoClippy: New Clipper Malware Targeting Portuguese Cryptocurrency Users

Portuguese users are being targeted by a new malware codenamed CryptoClippy that's capable of stealing cryptocurrency as part of a malvertising campaign. The activity leverages SEO poisoning techniques to entice users searching for "WhatsApp web" to rogue domains hosting the malware, Palo Alto...

New VPN Malvertising Attack Drops OpcJacker Crypto Stealer

By Deeba Ahmed Researchers warned that the campaign works through a network of fake websites that promote seemingly harmless crypto apps and other software. This is a post from HackRead.com Read the original post: New VPN Malvertising Attack Drops OpcJacker Crypto Stealer...

Crypto-Stealing OpcJacker Malware Targets Users with Fake VPN Service

A piece of new information-stealing malware called OpcJacker has been spotted in the wild since the second half of 2022 as part of a malvertising campaign. "OpcJacker's main functions include keylogging, taking screenshots, stealing sensitive data from browsers, loading additional modules, and...

Crypto-Stealing OpcJacker Malware Targets Users with Fake VPN Service

A piece of new information-stealing malware called OpcJacker has been spotted in the wild since the second half of 2022 as part of a malvertising campaign. "OpcJacker's main functions include keylogging, taking screenshots, stealing sensitive data from browsers, loading additional modules, and...

New OpcJacker Malware Distributed via Fake VPN Malvertising

We discovered a new malware, which we named “OpcJacker” due to its opcode configuration design and its cryptocurrency hijacking ability, that has been distributed in the wild since the second half of 2022...

New DotRunpeX Malware Delivers Multiple Malware Families via Malicious Ads

A new piece of malware dubbed dotRunpeX is being used to distribute numerous known malware families such as Agent Tesla, Ave Maria, BitRAT, FormBook, LokiBot, NetWire, Raccoon Stealer, RedLine Stealer, Remcos, Rhadamanthys, and Vidar. "DotRunpeX is a new injector written in .NET using the Process...

BATLOADER Malware Uses Google Ads to Deliver Vidar Stealer and Ursnif Payloads

The malware downloader known as BATLOADER has been observed abusing Google Ads to deliver secondary payloads like Vidar Stealer and Ursnif. According to cybersecurity company eSentire, the malicious ads are used to spoof a wide range of legitimate apps and services such as Adobe, OpenAPI's ChatGP...

Malvertising through search engines

In recent months, we observed an increase in the number of malicious campaigns that use Google Advertising as a means of distributing and delivering malware. At least two different stealers, Rhadamanthys and RedLine, were abusing the search engine promotion plan in order to deliver malicious...

Internet Explorer users still targeted by RIG exploit kit

Despite a very slim browser market share, Internet Explorer IE is still being exploited by exploit kits like the RIG exploit kit EK. One major advantage for the malware distributors behind the exploit kit is that the outdated browser has reached end-of-life EOL, which means it no longer receives...

Researchers Share New Insights Into RIG Exploit Kit Malware's Operations

The RIG exploit kit EK touched an all-time high successful exploitation rate of nearly 30% in 2022, new findings reveal. "RIG EK is a financially-motivated program that has been active since 2014," Swiss cybersecurity company PRODAFT said in an exhaustive report shared with The Hacker News...

Researchers Share New Insights Into RIG Exploit Kit Malware's Operations

The RIG exploit kit EK touched an all-time high successful exploitation rate of nearly 30% in 2022, new findings reveal. "RIG EK is a financially-motivated program that has been active since 2014," Swiss cybersecurity company PRODAFT said in an exhaustive report shared with The Hacker News...