Banking Trojans: Mekotio Looks to Expand Targets, BBTok Abuses Utility Command

Notorious Mekotio and BBTok are having a resurgence targeting Latin American users. Mekotio’s latest variant suggests the gang behind it is broadening their target, while BBTok is seen abusing MSBuild.exe to evade detection...

Mekotio Trojan Targets the Latin American Financial Sector

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Experts Warn of Mekotio Banking Trojan Targeting Latin American Countries

Financial institutions in Latin America are being threatened by a banking trojan called Mekotio aka Melcoz. That's according to findings from Trend Micro, which said it recently observed a surge in cyber attacks distributing the Windows malware. Mekotio, known to be actively put to use since 2015...

Mekotio Banking Trojan Threatens Financial Systems in Latin America

We’ve recently seen a surge in attacks involving the Mekotio banking trojan. In this blog entry, we'll provide an overview of the trojan and what it does...

Astaroth, Mekotio & Ousaban abusing Google Cloud Run in LATAM-focused malware campaigns

Google Cloud Run is currently being abused in high-volume malware distribution campaigns, spreading several banking trojans such as Astaroth aka Guildma, Mekotio and Ousaban to targets across Latin America and Europe. The volume of emails associated with these campaigns has significantly increase...

Hackers Increasingly Using HTML Smuggling in Malware and Phishing Attacks

Threat actors are increasingly banking on the technique of HTML smuggling in phishing campaigns as a means to gain initial access and deploy an array of threats, including banking malware, remote administration trojans RATs, and ransomware payloads. Microsoft 365 Defender Threat Intelligence Team...

HTML smuggling surges: Highly evasive loader technique increasingly used in banking malware, targeted attacks

HTML smuggling, a highly evasive malware delivery technique that leverages legitimate HTML5 and JavaScript features, is increasingly used in email campaigns that deploy banking malware, remote access Trojans RATs, and other payloads related to targeted attacks. Notably, this technique was observe...

Mekotio Banking Trojan Resurges with Tweaked Code, Stealthy Campaign

The Mekotio Latin American banking trojan is bouncing back after several of the gang that operates it were arrested in Spain. More than 100 attacks in recent weeks have featured a new infection routine, indicating that the group continues to actively retool. “The new campaign started right after...

Mekotio Banking Trojan Resurfaces with New Attacking and Stealth Techniques

The operators behind the Mekotio banking trojan have resurfaced with a shift in its infection flow so as to stay under the radar and evade security software, while staging nearly 100 attacks over the last three months. "One of the main characteristics … is the modular attack which gives the...

Arrests of members of Tetrade seed groups Grandoreiro and Melcoz

Spains Ministry of the Interior has announced the arrest of 16 individuals connected to the Grandoreiro and Melcoz also known as Mekotio cybercrime groups. Both are originally from Brazil and form part of the Tetrade umbrella, operating for a few years now in Latin America and Western Europe...