sending file using netcat

On your server (A):

nc -l -p 1234 -q 1 > something.zip < /dev/null

On your “sender client” (B):

cat something.zip | netcat server.ip.here 1234

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Btcphilo

WHAT THE AVERAGE PERSON DOESN’T GET ABOUT BITCOIN — PHILOSOPHICAL ARGUMENT

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r2con2017

barcelona held, as it did last year, the radare conference r2con2017 with its focus on manual and automated reverse engineering, static and dynamic analysis, fuzzing, forensics, exploiting, unpacking, malware, and many more. it also allowed attendees and developers to meet and discuss design and implementation tips for the future of the project.

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smb enumeration

Server Message Block (SMB) protocol’s security track record has been poor for more than 10 years, due to its complex implementation, and open nature.

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useful nmap scans

enumerate and find as much information of the top 1000 ports (recommended first scan):
$ nmap --top-ports 1000 -T4 -sC http://nop.cat
network sweeping:
$ nmap -sn 192.168.11.200-250
scan for the top 20 TCP ports and save output in a file:
$ nmap -sT -A --top-ports=20 192.168.11.200-250 -oG top-port-sweep.txt
banner grabbing, service ennumeration:
$ nmap -sV -sT 192.168.1.100
OS identifying:
$ nmap -O 10.0.0.10
attempt to connect to the SMB service:
$ nmap 10.17.140.100 --script smb-os-discovery.nse
DNS zone transfer NSE script
$ nmap --script=dns-zone-transfer -p 53 nop.cat

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