We came across a new variant of the disk-wiping KillDisk targeting financial organizations in Latin America. Trend Micro detects it as TROJ_KILLDISK.IUB. Trend Micro™ Deep Discovery™ proactively blocks any intrusions or attacks associated with this threat. Initial analysis (which is still ongoing) reveals that it may be a component of another payload, or part of a bigger attack. We are still analyzing this new KillDisk variant and we will update this post as we uncover more details about this threat.Read More
Despite being nearly a decade old, and years past its peak, DOWNAD, also known as CONFICKER, has not gone away. 9 years to the month after its first discovery, we take a look at the numbers to see where DOWNAD is today, and why it is still one of the world’s most prevalent malware.Read More
A ransomware campaign is currently ongoing, hitting Eastern European countries with what seems to be a variant of the Petya ransomware dubbed Bad Rabbit.Read More
The mobile threat landscape isn’t just rife with information stealers and rooting malware. There’s also mobile ransomware. While it seems they’re not as mature as their desktop counterparts, what with the likes of WannaCry and Petya, the increasing usage of mobile devices, particularly by businesses, will naturally draw more cybercriminal attention to this type of threat.
Take for instance mobile ransomware on the Android platform. The variants we detected and analyzed during the fourth quarter of last year were thrice as many compared to the same period in 2015. And indeed, the surge is staggering. We already had over 235,000 detections for Android mobile ransomware in the first half of 2017 alone—that’s 181% of detections for all of 2016.Read More
On June 10, South Korean web hosting company NAYANA was hit by Erebus ransomware (detected by Trend Micro as RANSOM_ELFEREBUS.A), infecting 153 Linux servers and over 3,400 business websites the company hosts.
In a notice posted on NAYANA’s website last June 12, the company shared that the attackers demanded an unprecedented ransom of 550 Bitcoins (BTC), or US$1.62 million, in order to decrypt the affected files from all its servers.
Erebus was first seen on September 2016 via malvertisements and reemerged on February 2017 and used a method that bypasses Windows’ User Account Control. Here are some of the notable technical details we’ve uncovered so far about Erebus’ Linux version.Read More