Bot signature update for May 2026

Updated signatures rules are generated for the bots identified in the week 2026-05-25. You can download and configure these signature rules to protect your appliance from bot attacks.

Bot signature version

Signature version 28 applicable for NetScaler® platforms running on the following versions:

  • 13.1-61.23 or later
  • 14.1-56.74 or later

New bot signatures in this version

Following is a list of bot signature rule IDs, categories, and their types.

Bot signature ID Bot Category Bot Type
5152 Scraper Bad Bot
5153 Scraper Bad Bot
5154 Speed Tester Good Bot
5155 Scraper Bad Bot
5156 Scraper Bad Bot
5157 Scraper Bad Bot
5158 Scraper Bad Bot
5159 Scraper Bad Bot
5160 Scraper Bad Bot

Updated bot signatures in this version

Following is a list of bot signature rule IDs, category and its type.

Bot signature ID Bot Category Bot Type
378 Scraper Good Bot
382 Scraper Good Bot
3798 Marketing Good Bot
3833 Search Engine Good Bot
4377 Crawler Good Bot
4452 Search Engine Good Bot
4503 Marketing Good Bot
4922 Crawler Good Bot
4923 Search Engine Good Bot
4936 Uncategorized Good Bot
5075 Uncategorized Good Bot
Bot signature update for May 2026