I wanted to share a small tool I’ve repurposed to validate list of domains and IP. You might have seen the original called isup and this tool was not working to my satisfaction so i made some major changes to it. A massive drawback of isup was the ICMP pings which is often blocked and this seriously halted the reconnaissance phase and thus, ISITUP was born! The purpose of ISITUP is to make a more reliable reconnaissance with reliable outputs.

[+] TCP ping (80,443,8080)
[+] More reliable recon-operations

[+] Manual scope entry

Its made public on my github, make sure you check out the README.

Creds to @___0x00 (github: gitnepal)!

# @boi @hitemsec
# hitem @ github
# 2022-03-01