A User Agent that says just "Mozilla/4.0" is a bot, right?

security user-agent bots
Daniel Magliola picture Daniel Magliola · May 7, 2009 · Viewed 13.9k times · Source

I'm getting several requests in web apps that are basically wrong in ways my code shouldn't be generating... Mainly it's requests to .ashx without any GET parameters specified.

The user agent is "Mozilla/4.0" (nothing more than that) The IPs vary from day to day.

This is a bot, right?

Thanks!

Answer

Proton picture Proton · Jul 9, 2012

Sorry to bump old question, but I think this is the bot used by the Great Firewall of China. They crawl web contents, and do their censorship.

Check your log and see if there is anything like 'GET /cert/bazs.cert'.

100% sure if this is found.

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