CERT-UA Uncovers Gamaredon's Rapid Data Exfiltration Tactics Following Initial Compromise

The Russia-linked threat actor known as Gamaredon has been observed conducting data exfiltration activities within an hour of the initial compromise. "As a vector of primary compromise, for the most part, emails and messages in messengers Telegram, WhatsApp, Signal are used, in most cases, using...

Chinese Hacker Group 'Flea' Targets American Ministries with Graphican Backdoor

Foreign affairs ministries in the Americas have been targeted by a Chinese state-sponsored actor named Flea as part of a recent campaign that spanned from late 2022 to early 2023. The cyber attacks, per Broadcom's Symantec, involved a new backdoor codenamed Graphican. Some of the other targets...

Lancefly APT Group Deploys Custom Backdoor ‘Merdoor’ in Targeted Attacks

Threat Level Actor Report For a detailed threat advisory, download the pdf file here Summary The Lancefly APT group targets South and Southeast Asia using the Merdoor backdoor and an updated ZXShell rootkit. Their attack chain involves credential theft, lateral movement, file staging, and...

Threat Roundup for May 5 to May 12

Today, Talos is publishing a glimpse into the most prevalent threats weve observed between May 5 and May 12. As with previous roundups, this post isnt meant to be an in-depth analysis. Instead, this post will summarize the threats weve observed by highlighting key behavioral characteristics,...

New Mirai Botnet Variant 'V3G4' Exploiting 13 Flaws to Target Linux and IoT Devices

A new variant of the notorious Mirai botnet has been found leveraging several security vulnerabilities to propagate itself to Linux and IoT devices. Observed during the second half of 2022, the new version has been dubbed V3G4 by Palo Alto Networks Unit 42, which identified three different...

CRYPTBOT Information-Stealing Malware Targeting Your Browser and Crypto-Wallet

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary CRYPTBOT is malware that steals personal information by gathering browser credentials, cookies, cryptocurrency wallets, and system information. It then compresses the collected data into a zip file and...

Point-of-sale malware used to steal 167,000 credit cards

In the 19 months between February 2021 and September 2022, two point-of-sale POS malware operators have stolen more than 167,000 payment records, mainly from the US, according to researchers at Group-IB. The researchers were able to retrieve information about infected machines and compromised...

Hackers Targeting Unpatched Atlassian Confluence Servers to Deploy Crypto Miners

A now-patched critical security flaw affecting Atlassian Confluence Server that came to light a few months ago is being actively exploited for illicit cryptocurrency mining on unpatched installations. "If left unremedied and successfully exploited, this vulnerability could be used for multiple an...

Rewards plus: Fake mobile banking rewards apps lure users to install info-stealing RAT on Android devices

Our analysis of a recent version of a previously reported info-stealing Android malware, delivered through an ongoing SMS campaign, demonstrates the continuous evolution of mobile threats. Masquerading as a banking rewards app, this new version has additional remote access trojan RAT capabilities...

DoNot Team Hackers Updated its Malware Toolkit with Improved Capabilities

The Donot Team threat actor has updated its Jaca Windows malware toolkit with improved capabilities, including a revamped stealer module designed to plunder information from Google Chrome and Mozilla Firefox browsers. The improvements also include a new infection chain that incorporates previousl...

Russian State Hackers Continue to Attack Ukrainian Entities with Infostealer Malware

Russian state-sponsored actors are continuing to strike Ukrainian entities with information-stealing malware as part of what's suspected to be an espionage operation. Symantec, a division of Broadcom Software, attributed the malicious campaign to a threat actor tracked Shuckworm, also known as...

Hackers Target Ukrainian Software Company Using GoMet Backdoor

A large software development company whose software is used by different state entities in Ukraine was at the receiving end of an "uncommon" piece of malware, new research has found. The malware, first observed on the morning of May 19, 2022, is a custom variant of the open source backdoor known ...

Experts Detail Saintstealer and Prynt Stealer Info-Stealing Malware Families

Cybersecurity researchers have dissected the inner workings of an information-stealing malware called Saintstealer that's designed to siphon credentials and system information. "After execution, the stealer extracts username, passwords, credit card details, etc.," Cyble researchers said in an...

Over 16,500 Sites Hacked to Distribute Malware via Web Redirect Service

A new traffic direction system TDS called Parrot has been spotted leveraging tens of thousands of compromised websites to launch further malicious campaigns. "The TDS has infected various web servers hosting more than 16,500 websites, ranging from adult content sites, personal websites, universit...

New CapraRAT Android Malware Targets Indian Government and Military Personnel

A politically motivated advanced persistent threat APT group has expanded its malware arsenal to include a new remote access trojan RAT in its espionage attacks aimed at Indian military and diplomatic entities. Called CapraRAT by Trend Micro, the implant is an Android RAT that exhibits a high...

The evolution of a Mac trojan: UpdateAgent’s progression

Our discovery and analysis of a sophisticated Mac trojan in October exposed a year-long evolution of a malware family—and depicts the rising complexity of threats across platforms. The trojan, tracked as UpdateAgent, started as a relatively basic information-stealer but was observed distributing...

Widespread ‘Smishing’ Campaign Defrauds Iranian Android Users

Attackers are impersonating the Iranian government in a widespread SMS phishing campaign that is defrauding thousands of Android users by installing malware on their devices that can steal their credit card data and siphon money from financial accounts. Researchers from Check Point Research...

APT C-23 Hackers Using New Android Spyware Variant to Target Middle East Users

A threat actor known for striking targets in the Middle East has evolved its Android spyware yet again with enhanced capabilities that allow it to be stealthier and more persistent while passing off as seemingly innocuous app updates to stay under the radar. The new variants have "incorporated ne...

More Stealthier Version of BrazKing Android Malware Spotted in the Wild

Banking apps from Brazil are being targeted by a more elusive and stealthier version of an Android remote access trojan RAT that's capable of carrying out financial fraud attacks by stealing two-factor authentication 2FA codes and initiating rogue transactions from infected devices to transfer...

Abcbot — A New Evolving Wormable Botnet Malware Targeting Linux

Researchers from Qihoo 360's Netlab security team have released details of a new evolving botnet called "Abcbot" that has been observed in the wild with worm-like propagation features to infect Linux systems and launch distributed denial-of-service DDoS attacks against targets. While the earliest...