Reconnaissance plays a vital role in criminal operations, and some groups go to great lengths to investigate their targets’ systems. A recent example is the Andariel Group, a known branch of the notorious Lazarus Group. Last month, we tracked new scouting techniques coming from Andariel, used mainly against South Korean targets.Read More
Joseph C Chen
Our Cyber Safety Solutions team identified a malicious Chrome extension we named FacexWorm, which uses a miscellany of techniques to target cryptocurrency trading platforms accessed on an affected browser and propagates via Facebook Messenger.
FacexWorm isn’t new. It was uncovered in August 2017, though its whys and hows were still unclear at the time. Last April 8, however, we noticed a spike in its activities that coincided with external reports of FacexWorm surfacing in Germany, Tunisia, Japan, Taiwan, South Korea, and Spain.Read More
The Trend Micro Cyber Safety Solutions team has been tracking a potentially unwanted app (PUA) distribution campaign that installs PUA software downloaders. During our research, we found that some of these distributors started pushing malware along with PUAs in late 2017. In this post we focus on one of the older PUA software downloaders called ICLoader (also called FusionCore and detected by Trend Micro as PUA_ICLOADER). Different reports identified it as a PUA software downloader because it installed adware or unwanted software.Read More
A new ransomware is being distributed by the Magnitude exploit kit: Magniber (detected by Trend Micro as RANSOM_MAGNIBER.A), which we found targeting South Korea via malvertisements on attacker-owned domains/sites. The development in Magnitude’s activity is notable not only because it eschewed Cerber—its usual ransomware payload—in favor of Magniber. Magnitude now also appears to have become an exploit kit expressly targeting South Korean end users.
The Magnitude exploit kit, which previously had a global reach, was offered as a service in the cybercriminal underground as early as 2013. It then left the market and became a private exploit kit that mainly distributed ransomware such as CryptoWall. At the start of the second half of 2016, Magnitude shifted focus to Asian countries, delivering various ransomware such as Locky and Cerber. More recently though, we noticed that Magnitude underwent a hiatus that began on September 23, 2017, and it then returned on October 15. With help from Kafeine and malc0de, we were able to uncover Magnitude’s new payload, Magniber.Read More