Palida Narrow is a new font that Gauss malware installs on machines it infects. The most popular theory is that it is a brand mark for the command and control servers. Experts say it is unusual for a new typeface to be installed by malware. Some experts say it may have been a mistake, others say it was more purposeful than that, others think it was a mistake. But experts say Palida is a good indicator of a Gauss infection, but not necessarily easy to detect.”]
Source: https://www.csoonline.com/article/2132076/mysterious-font-left-by-malware-befuddles.html