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System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

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Host Enumeration:

--- OS Specifics ---
wmic os LIST Full (* To obtain the OS Name, use the "caption" property)

wmic computersystem LIST full

--- Anti-Virus ---

wmic /namespace:\\root\securitycenter2 path antivirusproduct

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Google Cloud link (compress as 7zip): https://drive.google.com/open?id=0B22DpOv0xg6ER3ZKbGFfMUdnMU0

Oreilly link: https://resources.oreilly.com/examples/9781593271442/raw/master/hacking-live-1.0.iso

Hacking2 Vagrant box

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FILE SPACING:

 # double space a file
 sed G

 # double space a file which already has blank lines in it. Output file
 # should contain no more than one blank line between lines of text.
 sed '/^$/d;G'

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Document infos:
- Author = Peter Kim
- CreationDate = D:20180505020009+00'00'
- Creator = calibre 2.69.0 [https://calibre-ebook.com]
- Pages = 308
- Producer = calibre 2.69.0 [https://calibre-ebook.com]
- Title = The Hacker Playbook 3: Practical Guide To Penetration Testing
- dc = {'publisher': ['Secure Planet'], 'description': {'x-default': None}, 'language': ['en'], 'creator': ['Peter Kim'], 'title': {'x-default': 'The Hacker Playbook 3: Practical Guide To Penetration Testing'}, 'date': ['2018-05-01T00:00:00+02:00'], 'subject': []}
- http://calibre-ebook.com/xmp-namespace = {'timestamp': '2018-05-03T18:05:43.134685+02:00', 'author_sort': 'Kim, Peter'}
- xap = {'Identifier': ['\n            '], 'MetadataDate': '2018-05-05T04:00:09.811485+02:00'}

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Purpose

Cheatsheet for HackTheBox with common things to do while solving these CTF challenges.

Because a smart man once said:

Never google twice.

Linux General