A malware campaign was recently detected in Brazil, distributing a malicious LNK file using WhatsApp. It targets mainly Brazilians and uses Portuguese-named URLs.
To evade detection, the command-and-control (C2) server verifies each download to ensure it originates from the malware itself. The whole infection chain is complex and fully fileless, and by the end, it will deliver a new banking Trojan named Maverick, which contains many code overlaps with Coyote. In this blog post, we detail the entire infection chain, encryption algorithm, and its targets, as well as discuss the similarities with known threats.
Read more…
Source: Kaspersky
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Ransomware groups continue assault on healthcare orgs as COVID-19 infections increase
September 11, 2021
Ransomware groups have shown no signs of slowing down their assault on hospitals, seemingly ramping up attacks on healthcare institutions as dozens of countries deal with a new wave of COVID-19 infections thanks to the potent Delta variant. Vice Society, one of the newer ransomware groups, debuted in June and made a name for themselves by ...
- SOVA, Worryingly Sophisticated Android Trojan, Takes Flight
September 10, 2021
A new Android banking trojan named SOVA (“owl” in Russian) is under active development, researchers said, and it has big dreams even in its infancy stage. The malware is looking to incorporate distributed denial of service (DDoS), man in the middle (MiTM) and ransomware functionality into its arsenal – on top of existing banking overlay, ...
- Ukrainian man extradited to the US to face botnet, data theft charges
September 10, 2021
A Ukrainian man was arrested in Poland and extradited to the US to face charges as an alleged botnet operator. The US Department of Justice (DoJ) said this week that Glib Oleksandr Ivanov-Tolpintsev was taken into custody in Korczowa, Poland, on October 3 last year. As the US and Poland have an extradition treaty, the 28-year-old was ...
- Hackers leak passwords for 500,000 Fortinet VPN accounts
September 8, 2021
A threat actor has leaked a list of almost 500,000 Fortinet VPN login names and passwords that were allegedly scraped from exploitable devices last summer. While the threat actor states that the exploited Fortinet vulnerability has since been patched, they claim that many VPN credentials are still valid. This leak is a serious incident as the VPN ...
- AT&T Alien Labs warns of ‘zero or low detection’ for TeamTNT’s latest malware bundle
September 8, 2021
AT&T’s Alien Labs security division has sounded the alarm on a malware campaign from TeamTNT which, it claims, has gone almost entirely undetected by anti-virus systems – and which is turning target devices into cryptocurrency miners. Described by Alien Labs researcher Ofer Caspi as “one of the most active threat groups since 2020,” TeamTNT is known ...
- Russia’s Yandex suffers biggest cyberattack yet
September 8, 2021
Russian Internet corporation Yandex revealed on Tuesday that the company’s servers experienced the biggest known denial-of-service (DDoS) attack in Russia’s online space last weekend. Cloudflare, an American web infrastructure firm and a partner of Yandex confirmed the record large scale of the cyberattack. The spokesperson for Russia’s tech giant mentioned that a part of the nation’s ...

