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Credit card skimmer targets ASP.NET sites

Cybercriminals typically focus on targets that can get them the highest return with the least amount of effort. This is often determined by their ability to scale attacks, and therefore on how prevalent a vulnerability or target system is. Enter: the credit card skimmer. In the world of digital skimming, we’ve seen the most activity on e-commerce content management systems (CMSes), such … [Read more...]

Multi-stage APT attack drops Cobalt Strike using Malleable C2 feature

This blog post was authored by Hossein Jazi and Jérôme Segura On June 10, we found a malicious Word document disguised as a resume that uses template injection to drop a .Net Loader. This is the first part of a multi-stage attack that we believe is associated to an APT attack. In the last stage, the threat actors used Cobalt Strike’s Malleable C2 feature to download the final payload and … [Read more...]

Honda and Enel impacted by cyber attack suspected to be ransomware

Car manufacturer Honda has been hit by a cyber attack, according to a report published by the BBC, and later confirmed by the company in a tweet. Another similar attack, also disclosed on Twitter, hit Edesur S.A., one of the companies belonging to Enel Argentina which operates in the business of energy distribution in the City of Buenos Aires. Based on samples posted online, these incidents may … [Read more...]

New LNK attack tied to Higaisa APT discovered

This post was authored by Hossein Jazi and Jérôme Segura On May 29th, we identified an attack that we believe is part of a new campaign from an Advanced Persistent Threat actor known as Higaisa. The Higaisa APT is believed to be tied to the Korean peninsula, and was first disclosed by Tencent Security Threat Intelligence Center in early 2019. The group’s activities go back to at least … [Read more...]

Coronavirus campaigns lead to surge in malware threats, Labs report finds

In the first three months of 2020, as the world clamped down to limit coronavirus, cyber threats ramped up. Our latest, special edition for our quarterly CTNT report focuses on recent, increased malware threats which all have one, big thing in common—using coronavirus as a lure. Our report, “Cybercrime tactics and techniques: Attack on home base,” analyzes the trojans, info stealers, and … [Read more...]

Shining a light on “Silent Night” Zloader/Zbot

When it comes to banking Trojans, ZeuS is probably the most famous one ever released. Since its source code originally leaked in 2011, several new variants proliferated online. That includes a past fork called Terdot Zbot/Zloader, which we extensively covered in 2017. But recently, we observed another bot, with a design reminiscent of ZeuS, that seems to be fairly new (a 1.0 version was … [Read more...]

New Mac variant of Lazarus Dacls RAT distributed via Trojanized 2FA app

This blog post was authored by Hossein Jazi, Thomas Reed and Jérôme Segura. We recently identified what we believe is a new variant of the Dacls Remote Access Trojan (RAT) associated with North Korea’s Lazarus group, designed specifically for the Mac operating system. Dacls is a RAT that was discovered by Qihoo 360 NetLab in December 2019 as a fully functional covert remote access … [Read more...]

Credit card skimmer masquerades as favicon

Malware authors are notorious for their deceptive attempts at staying one step ahead of defenders. As their schemes get exposed, they always need to go back to their bag of tricks to pull out a new one. When it comes to online credit card skimmers, we have already seen a number of evasion techniques, some fairly simple and others more elaborate. The goal remains to deceive online shoppers while … [Read more...]

APTs and COVID-19: How advanced persistent threats use the coronavirus as a lure

The coronavirus (Covid-19) has become a global pandemic and this is a golden time for attackers to take advantage of this fear to increase the likelihood of their attacks success rate by performing spam and spear phishing campaigns. From late January, several cyber-criminal and state-sponsored groups have begun using coronavirus-based phishing as their infection vectors to gain a foothold on … [Read more...]