by John Anthony Bañes Malicious macros are commonly used to deliver malware payloads to victims, usually by coercing victims into enabling the macro sent via spam email. The macro then executes a PowerShell script to download ransomware or some other malware. Just this September EMOTET, an older banking malware, leveraged this method in a campaign that…Read More
Microsoft’s Patch Tuesday for October addresses 62 vulnerabilities, 27 of which are critical and 35 important in terms of severity; many of these flaws can lead to remote code execution (RCE). Microsoft’s fixes are patches for features in the Windows operating system (OS) and Microsoft Office (including Office Web Apps), Skype for Business, Edge, Internet Explorer (including the Chakra Core browser engine), Exchange Server, and .NET development framework, among others. As per Microsoft’s previous advisories, this month’s Patch Tuesday also marks the end of support and patches/updates for Office 2007 and Outlook 2007.
Of note is Microsoft’s fix for CVE-2017-11826, a memory corruption vulnerability in Microsoft Office that was publicly disclosed and reported to be actively exploited in the wild.Read More
Equifax confirmed the attack vector used in its data breach to be CVE-2017-5638, a vulnerability patched last March 2017 via S2-045. The vulnerability was exploited to gain unauthorized access to highly sensitive data of approximately 143 million U.S. and 400,000 U.K. customers, as well as 100,000 Canadian consumers. This vulnerability was first disclosed in March, almost immediately followed by publicly available POCs, weaponized exploits, and scanners produced by third parties.
Trend Micro observed thousands of filter events via our intrusion prevention solutions against the filters for this vulnerability since March, and these exploits or enumeration attempts are still being seen. It’s worth noting that Trend Micro customers can leverage these filters to provide a highly effective virtual patch to address critical Apache Struts vulnerabilities until actual software updates are deployed to secure the system.Read More
In the beginning of September, a sizeable spam campaign was detected distributing a new Locky variant. Locky is a notorious ransomware that was first detected in the early months of 2016 and has continued to evolve and spread through different methods, particularly spam mail. A thorough look at samples from recent campaigns shows that cybercriminals are using sophisticated distribution methods, affecting users in more than 70 countries.
In the specific campaigns discussed below, both Locky and the ransomware FakeGlobe were being distributed—but the two were rotated. The cybercriminals behind the campaign designed it so that clicking on a link from the spam email might deliver Locky one hour, and then FakeGlobe the next. This makes re-infection a distinct possibility, as victims infected with one ransomware are still vulnerable to the next one in the rotation.Read More
While iOS devices generally see relatively fewer threats because of the platform’s walled garden approach in terms of how apps are installed, it’s not entirely unbreachable. We saw a number of threats that successfully scaled the walls in 2016, from those that abused enterprise certificates to ones that exploited vulnerabilities to curtail Apple’s stringent control over its platforms.
This is further exemplified by iXintpwn/YJSNPI (detected by Trend Micro as TROJ_YJSNPI.A), a malicious profile that can render the iOS device unresponsive. It was part of the remnants of the work of a Japanese script kiddie who was arrested in early June this year.
While iXintpwn/YJSNPI seems currently concentrated in Japan, it won’t surprise anyone if it spreads beyond the country given how it proliferated in social media.Read More