The cat came back the very next day... and it keeps coming back.

A malvertising operation designed to infect online publishers with browser-hijacking malware called Ghostcat-3PC has launched at least 18 separate infection campaigns in the last three months alone, according to a new report from the Digital Security & Operations (DSO) team at The Media Trust. Over that time, the DSO team stopped more than 130 distinct attacks, the report continues.

So far, it appears that Ghostcat's owners have been targeting website visitors based in the U.S. and Europe, with a goal to hijack their mobile browser sessions. At this point, there are at least four different versions of the malware, which leverage obfuscated code and delivery patterns to avoid signature-based detection.

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