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Newly launched .zip already looks dodgy

Kevin Murphy, May 15, 2023, 10:41:23 (UTC), Domain Registries

A trawl through the latest zone file for Google’s newly launched .zip gTLD reveals that it is likely to be used in malware and phishing attacks.

.zip is of course also a filename extension used by the ZIP archive format, often used to compress and email multiple files at once, and many domains registered in the .zip gTLD in the last few days seem ready to capitalize on that potential for confusion.

I counted 3,286 domains in the May 14 zone file, and a great many of them appear to relate to email attachments, financial documents, software updates and employment information.

I found 133 instances of the word “update”, with sub-strings such as “attach”, “statement”, “download” and “install” also quite common.

Some domains are named after US tax and SEC forms, and some appear to be targeting employees at their first day of work.

I don’t know the intent of any of these registrants, of course. It’s perfectly possible some of their domains could be put to benign use or have been registered defensively by those with security concerns. But my gut says at least some of these names are dodgy.

Google went into general availability with eight new TLDs last Wednesday, and as of yesterday .zip was the only one to rack up more than a thousand names in its zone file.

The others were .dad (913 domains), .prof (264), .phd (605), .mov (463), .esq (979), .foo (665) and .nexus (330).

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