Learning by practicing

Learning is an ongoing activity ... practicing makes it fun

Thursday, December 10, 2015

tcpreplay - Taking a look at packet replaying.

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While teaching the SANS 503 (Intrusion Detection In-Depth) Community class last week in Ottawa,  a student asked if the packets are actuall...
Wednesday, December 9, 2015

Covert Channels - Part 2 - exfiltrating data through TCP Sequence Number field

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A while back I did this blog post on transferring data via the IP ID field . Recently, I had to do some work on this topic again, so I thoug...
Tuesday, December 8, 2015

Some tshark examples a mix of basic and somewhat advance

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Viewing all IP packets tshark -n -r filename.pcap  -Y "ip" Viewing all TCP packets tshark -n -r filename.pcap  -Y "tcp...

a few not so basic windump examples

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Verify IP verion is 4 windump -nvv -r filename.pcap -X "ip[0] & 0xF0 = 0x40" Verify IP header has no options. That is the IP...

Windump basics by examples

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Just a quick put together of some basic tcpdump commands. In this post I will be targeting a .pcap file. However, these commands can be us...
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Sunday, November 1, 2015

Volatility Memory Forensics - Investigation a potential virus situation - Part 5

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Part 1 | Part 2 | Part 3 | Part 4 Final Pass – ShimCache, ShellBags & Prefetch Before closing off, the decision was made to tak...
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  • Nik Alleyne, MSc | CISSP | GC|IA|IH|REM|PEN
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