Foundstone Blast – TCP Network Service Stress Test Tool

Find your website's Achilles' Heel

Foundstone Blast v2.0 is a small, quick TCP service stress test tool. Blast does a good amount of work very quickly and can help spot potential weaknesses in your network servers.


/trial switch adds the ability to see how the buffer looks before sending it
/v switch adds verbose option – off by default
/nr switch turns off initial receive after initial connect – HTTP services don’t send and initial response, Mail services do
The /nr switch fixes the effect of HTTP timeouts when sending GET strings
/dr adds double LF/CR’s to buffers(useful for GET requests) off by default


blast port startsize endsize /t rcvtimeout /d senddelay /b beginmsg /e endmsg /noret


blast 110 600 680 /t 7000 /d 300 /b user
blast 110 600 680 /t 7000 /d 300 /b user /e endchars
blast 110 600 680 /noret

/t == timeout delay in milliseconds to wait for server response
/d == delay before each send
/noret means to send raw data with no newline chars that a pop server expects at end
/b is a way to add cust text to begin of buf
/e is an alternate way to end each buf
/v switches on verbose output – off by default
/nr turns off initial receive after initial connect (useful for HTTP GET)
/dr adds double LF/CR’s to buffers (useful for HTTP GET)

You can read more and find Founstone Blast for download here:

Foundstone Blast v2.0

Posted in: Hacking Tools, Network Hacking

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One Response to Foundstone Blast – TCP Network Service Stress Test Tool

  1. Sir Henry December 16, 2007 at 7:28 pm #

    I used something similar for when I was stress testing hardware-based firewalls in a previous job. It would have been good to see how this stacks up against those I used. It appears to be easier to use, however, than the ones I was using.