ESET researchers, during their regular monitoring of the cyberespionage operations of Winter Vivern, discovered that the group recently began exploiting a zero-day XSS vulnerability in the Roundcube Webmail server. In an XSS attack, malicious scripts are injected into otherwise trusted websites.
ESET Research has discovered a new cyberespionage group, MoustachedBouncer. It is named after its presence in Belarus and is aligned with the interests of the local government. Active since at least 2014, the group targets only foreign embassies, including European ones, in Belarus.
ESET researchers have uncovered a new cyberespionage group attacking mainly hotels worldwide but also governments, international organizations, engineering companies and law firms. ESET has named this group FamousSparrow and believes it has been active since at least 2019.
ESET Research has been analyzing multiple campaigns since last year and some of the campaigns were attributed to the Gelsemium cyberespionage group, and the security company was able to track down the earliest version of their main malware, Gelsevirine, to 2014.
