In April’s Android Security Bulletin, we discovered and privately disclosed seven vulnerabilities—three of which were rated as Critical, one as High, and another three as Moderate.Read More
Mobile malware’s disruptive impact on enterprises continues to see an uptick in prevalence as mobile devices become an increasingly preferred platform to flexibly access and manage data. We recently found 200 unique Android apps—with installs ranging between 500,000 and a million on Google Play—embedded with a backdoor: MilkyDoor (detected by Trend Micro as ANDROIDOS_MILKYDOOR.A).
MilkyDoor is similar to DressCode (ANDROIDOS_SOCKSBOT.A)—an Android malware family that adversely affected enterprises—given that both employ a proxy using Socket Secure (SOCKS) protocol to gain a foothold into internal networks that infected mobile devices connect to. MilkyDoor, maybe inadvertently, provides attackers a way to conduct reconnaissance and access an enterprise’s vulnerable services by setting the SOCKS proxies. Further, this is carried out without the user’s knowledge or consent.
While MilkyDoor appears to be DressCode’s successor, MilkyDoor adds a few malicious tricks of its own. Among them are its more clandestine routines that enable it to bypass security restrictions and conceal its malicious activities within normal network traffic. It does so by using remote port forwarding via Secure Shell (SSH) tunnel through the commonly used Port 22. The abuse of SSH helps the malware encrypt malicious traffic and payloads, which makes detection of the malware trickier.Read More
By Jordan Pan and Masashi Yamamoto Trend Micro has identified more malicious Android apps abusing the name of the popular mobile game Super Mario Run. We earlier reported about how fake apps were using the app’s popularity to spread; attackers have now released versions of these fake apps that steal the user’s credit card information. Super Mario Run…Read More
Despite being one of the oldest Point-of-Sale (PoS) RAM scraper malware families out in the wild, RawPOS (detected by Trend Micro as TSPY_RAWPOS) is still very active today, with the threat actors behind it primarily focusing on the lucrative multibillion-dollar hospitality industry. While the threat actor’s tools for lateral movement, as well as RawPOS’ components, remain consistent, new behavior from the malware puts its victims at greater risk via potential identity theft. Specifically, this new behavior involves RawPOS stealing the driver’s license information from the user to aid in the threat group’s malicious activities.Read More
In one of our previous blog entries, we covered how GitHub was being used to spread malware. In this entry, we take a closer look at an individual who we believe might be connected to the threat actor behind the malware.
A careful analysis of the domain registrations from this threat actor between 2014 and 2015 allowed us to identify one profile used to register several domains that were used as C&C servers for a particular malware family employed by the Winnti group. In particular, we managed to gather details on an individual using the handle Hack520, who we believe is connected to Winnti.Read More