Several apps on Google Play posing as legitimate voice messenger platforms have automated functions such as fake survey pop-ups and fraudulent ad clicks. Observed variants were deployed one by one since October, with its evolution including evasive techniques and its infection behavior divided into several stages, as well as botnet codes possibly indicative of future attacks.
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BLADABINDI, also known as njRAT/Njw0rm, is a remote access tool (RAT) with a myriad of backdoor capabilities — from keylogging to carrying out distributed denial of service (DDoS) — and has been rehashed and reused in various cyberespionage campaigns since it first emerged. Indeed, BLADABINDI’s customizability and seeming availability in the underground make it a prevalent threat. Case in point: Last week, we came across a worm (detected by Trend Micro as Worm.Win32.BLADABINDI.AA) that propagates through removable drives and installs a fileless version of the BLADABINDI backdoor.
Read More XLoader and FakeSpy are two of the most prevalent malware families that emerged from the mobile threat landscape recently. We first reported about XLoader in April 2018 when it used Domain Name System (DNS) cache poisoning/DNS spoofing to victimize users with malicious Android apps that steal PII and financial data and install additional apps. Meanwhile, we released our findings on FakeSpy in June after it infected Android users via SMS phishing or SMiShing to launch info-stealing attacks.
As of October, there have been a combined total of 384,748 victims from XLoader and FakeSpy attacks globally, with the majority of victims coming from South Korea and Japan.
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TrickBot continues to evolve as it adds more features to steal users’ credentials, the most recent development we published being the pwgrab32 module. Because of TrickBot’s modular capability, we found a newly added POS malware feature that makes this banking trojan more dangerous. The new module scans for indicators if an infected computer is connected to a network that supports POS services and machines.
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The cybercriminal group Lazarus, and particularly its subgroup Bluenoroff, has a history of attacking financial organizations in Asia and Latin America. There seems to be a resurgence of activity from the group, and recent events show how their tools and techniques have evolved. We discovered that they successfully planted their backdoor into several machines of financial institutions across Latin America.
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