On the evening of June 27, 2017, multiple enterprises were attacked by ransomware, hence service interruption was caused. The first infections were identified in Ukraine. Since then, it has spread to many countries, including Brazil, Germany, Russia, and the US. This event had such an extensive and significant impact that technical support personnel of NSFOCUS paid close attention to it, and captured and analyzed the sample immediately.
On March 37, Zhiniang Peng and Chen Wu disclosed the Internet Information Services (IIS) 6.0 WebDAV remote code execution vulnerability, which has been assigned CVE-2017-7269 and CNNVD-201703-1151. This vulnerability, which could cause buffer overflows, is associated with the ScStoragePathFromUrl function in the WebDAV service in IIS 6.0 in Microsoft Windows Server 2003 R2.
IBM’s X-Force security team recently discovered an updated version of Dridex, called Dridex v4. Dridex is one of the most popular banking trojans. It was first spotted in 2014 when it was viewed as the successor of GameOver ZeuS (GoZ) because it uses GoZ-related techniques. An important improvement in Dridex v4 is that it evades detection antivirus software by introducing the AtomBoming technique for malicious code injection.
Ukrenergo, a major energy provider in Ukraine, experienced a power failure on the night of December 17, 2016, which involved the automatic control system of the “North” substation in New Petrivtsi close to Kiev. The blackout affected the northern part of Kiev, the country’s capital, and surrounding areas.