Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

WannaCry Blocker

Problem this snippet solves: This iApp template contributed by Mark Quevedo installs an iRule that will block WannaCry ransomeware How to use this snippet: install the iApp and apply iRule to vuln...
Published May 17, 2017
Version 1.0
irules
ms17-010
security
wannacry
JRahm's avatar
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Christ Follower, Husband, Father, Technologist. I love community and I especially love THIS community. My background is networking, but I've dabbled in all the F5 iStuff, I'm a recovering Perl guy, and am very much a python enthusiast. Learning alongside all of you in this accelerating industry toward modern apps and architectures.
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John_Allen
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May 20, 2017

Is there a version limit on this? I just get an error when I try to import:

 

Loading configuration... /tmp/upload_template.tmpl 01070712:3: Caught configuration exception (0), ERROR app_template - /Common/WannaCry_Blocker_v2 definition: line 3 [undefined procedure: iapp::template][iapp::template start] line 75 [undefined procedure: iapp::conf][iapp::conf "create ltm rule WannaCry-Blocker { ${patched} }"] - sys/validation/AppTemplateAction.cpp, line 127. Unexpected Error: Loading configuration process failed.