In 2018, it was found that 21.1 percent of malware cases involved infected websites distributing malware code in the form of web programming language HTML. According to , the .zip compression format was ranked second with a 2.6 percent share.
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AV-TEST. (July 19, 2019). Most common malware-infected files worldwide in 2018, by share of malware attacks [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 17, 2026, from /statistics/263346/leading-malware-file-extensions-worldwide/
AV-TEST. "Most common malware-infected files worldwide in 2018, by share of malware attacks." Chart. July 19, 2019. ÌÇÐÄÆƽâ°æ. Accessed July 17, 2026. /statistics/263346/leading-malware-file-extensions-worldwide/
AV-TEST. (2019). Most common malware-infected files worldwide in 2018, by share of malware attacks. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 17, 2026. /statistics/263346/leading-malware-file-extensions-worldwide/
AV-TEST. "Most Common Malware-infected Files Worldwide in 2018, by Share of Malware Attacks." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 19 Jul 2019, /statistics/263346/leading-malware-file-extensions-worldwide/
AV-TEST, Most common malware-infected files worldwide in 2018, by share of malware attacks ÌÇÐÄÆƽâ°æ, /statistics/263346/leading-malware-file-extensions-worldwide/ (last visited July 17, 2026)
Most common malware-infected files worldwide in 2018, by share of malware attacks [Graph], AV-TEST, July 19, 2019. [Online]. Available: /statistics/263346/leading-malware-file-extensions-worldwide/
