NTA Monitor

Latest News

Living with threats

1st August 2010 Back in 2004, Bill Gates predicted that spam would be a thing of the past within two years. As we all know now, and quite a lot of people predicted at the time, far from being a solved problem, the volume of spam has continued to increase. Read More

Web application security goes from bad to worse in many sectors

27th July 2010 NTA Monitor's 2010 Annual Web Application Security Report analysed the data gathered from web application security tests performed for a wide range of industry sectors over a 12-month period... Read More

IT Managers get to grips with Internet security issues

4th May 2010 According to NTA Monitor's 2010 Annual Security Report, the average number of Internet security vulnerabilities afflicting organisations has fallen.. Read More

Responsible Patching

1st January 2010 Microsoft's response to the "zero day" exploit that was used in the cyber attacks against Google shows that software vendors still have a lot to learn when it comes to responding to vulnerabilities. Read More

Annotated tcpdump packet trace on hacker system

# Hacker -< Server:21 TCP Handshake

15:29:27.515279 195.102.196.156.1035 > 194.217.26.147.21: S 2701514772:2701514772(0)
15:29:27.701995 194.217.26.147.21 > 195.102.196.156.1035: S 895641944:895641944(0) ack 2701514773
15:29:27.702015 195.102.196.156.1035 > 194.217.26.147.21: . ack 1

# Server:21 -< Hacker "220 FTP server ready."

15:29:27.871904 194.217.26.147.21 > 195.102.196.156.1035: P 1:24(23) ack 1 15:29:27.871939 195.102.196.156.1035 > 194.217.26.147.21: . ack 24

# Hacker -< Server:21 "USER anonymous"

15:29:40.236820 195.102.196.156.1035 > 194.217.26.147.21: P 1:17(16) ack 24 15:29:40.445613 194.217.26.147.21 > 195.102.196.156.1035: . ack 17

# Server:21 -< Hacker "331 Guest login ok, send your complete e-mail..."

15:29:40.465603 194.217.26.147.21 > 195.102.196.156.1035: P 24:92(68) ack 17 15:29:40.485595 195.102.196.156.1035 > 194.217.26.147.21: . ack 92

# Hacker -< Server:21 "PASS rsh@"

15:29:47.540744 195.102.196.156.1035 > 194.217.26.147.21: P 17:28(11) ack 92

# Server:21 -< Hacker "230 Guest login ok, access restrictions apply"

15:29:47.701986 194.217.26.147.21 > 195.102.196.156.1035: P 92:140(48) ack 28 15:29:47.721976 195.102.196.156.1035 > 194.217.26.147.21: . ack 140

# Hacker -< Server:21 "PORT 195,102,193,28,38,148"

(195.102.193.28:9876) 15:30:13.461336 195.102.196.156.1035 > 194.217.26.147.21: P 28:56(28) ack 140

# Server:21 -< Hacker "200 PORT command successful."

15:30:13.609038 194.217.26.147.21 > 195.102.196.156.1035: P 140:170(30) ack 56 15:30:13.629016 195.102.196.156.1035 > 194.217.26.147.21: . ack 170

# Hacker -< Server:21 "LIST"

15:30:19.304577 195.102.196.156.1035 > 194.217.26.147.21: P 56:62(6) ack 170

# Server:21 -< Hacker "150 Opening ASCII mode data connection for..."

15:30:19.536058 194.217.26.147.21 > 195.102.196.156.1035: P 170:233(63) ack 62 15:30:19.556049 195.102.196.156.1035 > 194.217.26.147.21: . ack 233

# Server:21 -< Hacker "226 Transfer complete."

15:30:19.895884 194.217.26.147.21 > 195.102.196.156.1035: P 233:257(24) ack 62 15:30:19.915869 195.102.196.156.1035 > 194.217.26.147.21: . ack 257

# Hacker -< Server:21 "QUIT"

15:30:25.742806 195.102.196.156.1035 > 194.217.26.147.21: P 62:68(6) ack 257

# Server:21 -< Hacker "221-You have transferred..."

15:30:25.932862 194.217.26.147.21 > 195.102.196.156.1035: P 257:441(184) ack 68

# TCP Connection Shutdown

15:30:25.942866 194.217.26.147.21 > 195.102.196.156.1035: F 441:441(0) ack 68 15:30:25.942890 195.102.196.156.1035 > 194.217.26.147.21: . ack 442 15:30:25.943188 195.102.196.156.1035 > 194.217.26.147.21: F 68:68(0) ack 442 15:30:26.092781 194.217.26.147.21 > 195.102.196.156.1035: . ack 69