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Cybercrime, Finance, Malware, Security News

Fiendish Amavaldo banking trojan strikes in Mexico after targeting Brazilians

Researchers this year discovered a pair of malicious campaigns that attempted to distribute the recently discovered Amavaldo banking trojan to Brazilians and Mexicans, respectively. Amavaldo is one of 10 malware families that researchers at ESET’s lab in Prague are claiming to have discovered since 2017, when they first launched an in-depth investigation into Latin American…
APTs/cyberespionage, Cybercrime, Malware, Security News

‘LightNeuron’ backdoor receives secret commands via Microsoft Exchange email servers; Russian link suspected

Researchers have uncovered what they say is the very first malware to achieve persistence in Microsoft Exchange email servers, which allows attackers to secretly execute commands via malicious emails featuring attachments with hidden code. Dubbed LightNeuron, the furtive backdoor has been targeting Exchange servers since at least 2014, according to a blog post from ESET,…
Cryptocurrency, Cybercrime, Malware, Security News

Stantinko botnet’s monetization strategy shifts to cryptomining

The versatile Stantinko botnet that’s been targeting former Soviet nations since at least 2012 has added a Monero cryptomining module to its arsenal. Stantinko historically has perpetrated click fraud, ad injections, social network fraud and brute-force password stealing attacks, primarily targeting Russia, Ukraine, Belarus and Kazakhstan. But this latest module, discovered by researchers at ESET,…
APTs/cyberespionage, Cybercrime, Gaming, Malware, Security News

Major software vendor compromised with previously undocumented PortReuse backdoor

A thorough investigation into reputed Chinese APT actor Winnti Group turned up a previously undocumented backdoor that was used to compromise a popular Asian mobile hardware and software vendor — perhaps as a prelude to launching a major supply chain attack against its users. Dubbed PortReuse, the modular malware is a passive network implant that…
APTs/cyberespionage, Cybercrime, Malware, Security News

Clandestine ‘GreyEnergy’ APT group spawned from BlackEnergy, NotPetya actors

Researchers from ESET yesterday exposed a previously undisclosed threat group that descended from TeleBots, the APT group known for launching the BlackEnergy trojan and NotPetya attacks against Ukraine in recent years. Dubbed GreyEnergy, the actor is comparable to the BlackEnergy group (which later changed strategies and became known as TeleBots or Sandworm) in that it…
APTs/cyberespionage, Cybercrime, Malware, Security News

Ramsay spy framework built to subvert air-gapped defenses

Air-gapped networks aren’t easily compromised, but they don’t offer perfectly air-tight security either. Leveraging insider threats, infecting flash drives and other removable media, and conducting side-channel attacks are all techniques malicious actors can employ to spread malware to isolated systems. Indeed, researchers at ESET are reporting the discovery of a new cyber espionage framework designed…
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