Sharp drop in JScript attacks

Peter Lemieux mailscanner at
Thu Jun 9 14:40:35 UTC 2016

This isn't directly pertinent to MailScanner, but since you all are pretty 
experienced in fighting malware, I thought I'd ask.

I have a healthcare client who was being deluged with JScript attacks.  On one 
day alone, the quarantine directory in MailScanner exceeded 7 GB in size.  For 
weeks MS was blocking thousands of JS files.  Now the attacks have abruptly 
stopped.  Has anyone else seen this behavior, or have any ideas about what 
might have happened?



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