We uncovered a recent activity involving the notorious online credit card skimming attack known as Magecart. The attack, facilitated by a new cybercrime group, impacted 201 online campus stores in the United States and Canada.Read More
We covered iXintpwn/YJSNPI in a previous blog post and looked into how it renders an iOS device unresponsive by overflowing it with icons. This threat comes in the form of an unsigned profile that crashes the standard application that manages the iOS home screen when installed. The malicious profile also exploits certain features to make iXintpwn/YJSNPI more difficult to uninstall.
We recently discovered a new variant of iXintpwn/YJSNPI (detected by Trend Micro as IOS_YJSNPI.A) that uses a signed profile to conduct different attacks compared to its predecessor. IOS_YJSNPI.A is extracted from either of the two app stores—hxxp://m[.]3454[.]com and hxxp://m[.]973[.]com. Based on our analysis, this new variant’s main purpose is not to damage users’ operating systems, but to lure users into downloading repackaged apps.Read More
One of the most popular ways to make money online is through pornography—whether through legitimate distribution or different online scams. Last year we detected a new variant of the Marcher Trojan targeting users through porn sites, and the year before that popular porn apps were used as lures to compromise millions of mobile users in…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