What Is Digital Forensics ? Part (43) Vmware Forensics

What Is Digital Forensics ? Part (43)
Vmware Forensics
လက္ရွိသုံးေနတဲ့ Operation System ေပၚမွာပဲ အျခားေသာ Operation System ကုိ အေၾကာင္းရင္းတစ္ခုခုေၾကာင့္သုံးျခင္တယ္ဆုိရင္ Virtual System တစ္ခုကုိ အသုံးၿပဳၾကပါတယ္။ အသုံးမ်ားတဲ့ Virtual System ေတြကေတာ့
Virtual Box
VMware
Window Virtual PC
Hyper -V
Oracle VM
Parallels
Docker တုိ႕့ျဖစ္ပါတယ္။
ဒီထဲကမွာမွ Vmware Forensic အေၾကာင္းကုိ ေရးသားသြားပါမယ္။ ဘာလုိ႕လဲဆုိရင္ VMware forensics အေၾကာင္းသိရင္ Esxi, Vspher ,Vcenter Forensics အေၾကာင္းကုိပါ ဆက္စပ္ေလ့လာႏုိင္ေအာင္လုိ႕ပါ။
Esxi, Vspher ,Vcenter Forensics အေၾကာင္းကေတာ့ ေတာ္ေတာ္ေလး ေရးယူရမဲ့ အၿပင္ လက္ေတြ႕ၿပႏုိင္မွ ပုိအဆင္ေၿပမွာမုိ႕လုိ႕ပါ။
Vmware မွာပါတဲ့ file system ေတြကေတာ့
vmem – Virtual machine memory file
vmdk – Virtual machine storage disk file
vmss – Virtual machine information file
log – Virtual machine log file
nvram – Keeps VM’s BIOS information
vmsn – Virtual machine snapshot file
vmxf – Additional configuration file.
.Vmdk
.Vmdk ကေတာ့ VMware Forensics မွာ အေရးၾကီးတဲ့ အပုိင္းမွာ ပါ၀င္ပါတယ္။ VMware မွာပါ၀င္တဲ့ အခ်က္အလက္ေတြ အကုန္ပါ၀င္ပါတယ္။VMware Hard disk နဲ႕လဲ ခ်ိတ္ဆက္ေပးပါတယ္။
.vmem
.vmem ကေတာ့ ကြန္ပ်ဴတာမွာ အသုံးၿပဳေနတဲ့ Ram ေတြလုိပါပဲ
VMware ရဲ႕ memory ပါ။ ဒါဆုိရင္ အရင္ကေရးခဲ့တဲ့ Memory Forensics
အတုိင္း Forensics လုပ္လုိ႕ရႏုိင္ပါတယ္။ vmem ကေနဘာေတြရႏုိင္မလဲ
User account, Password, Chat history, Web browsing history စတာေတြရရွိႏုိင္ပါတယ္။
.log
Log file မွာေတာ့ Vmware ေပၚမွာ User ၿပဳလုပ္သမွ် action ေတြကုိ ရရွိႏုိင္ပါတယ္။ VM information ေတြလဲရရွိႏုိင္ပါတယ္။ ဒီေလာက္ဆုိဘာေတြ ရႏုိင္မလဲ ဆုိတာသိေလာက္ပါၿပီ။
VMware မွာပါတဲ့ File Type ေတြသာမက က်န္တဲ့ Virtual System ေတြက File Type ေတြကုိလဲ သိထားသင့္ပါတယ္။
How to Forensics ?
Online Forensic Extraction
Offline Forensic Extraction
Simulation နည္းေတြနဲ႕ စစ္ေဆးပါတယ္။
(စစ္ေဆးဖုိ႕အတြက္ စစ္ေဆးသူရဲ႕ ကြ်မ္းက်င္မႈ အၿပင္ ဆက္စပ္အသုံးၿပဳရမဲ့အရာေတြလဲ လုိအပ္ပါတယ္) တစ္ခုေၿပာခ်င္တာကေတာ့ ဘာေတြပဲသုံးသုံး စစ္ေဆးသူရဲ႕ Knowledge က အေရးၾကီးဆုံးေသာေနရာမွာပါ၀င္ပါတယ္ ။
Thanks

Comments

Post a Comment

Popular posts from this blog

NTFS Index Attributes

Image
  NTFS Index Attributes Now that we have described the general concept of B-trees, we need to describe how they are implemented in NTFS to create indexes. Each entry in the tree uses a data structure called an index entry to store the values in each node. There are many types of index entries, but they all have the same standard header fields, which are given in Chapter 13. For example, a directory index entry contains a few header values and a $FILE_NAME attribute. The index entries are organized into nodes of the tree and stored in a list. An empty entry is used to signal the end of the list. Figure 11.18 shows an example of a node in a directory index with four $FILE_NAME index entries. Figure 11.18. A node in an NTFS directory index tree with four index entries. Figure 11.18 The index nodes can be stored in two types of MFT entry attributes. The $INDEX_ROOT attribute is always resident and can store only one node that contains a small number of index entries. The $INDEX_ROOT attrib
Read more

B-Trees (NTFS)

Image
  B-Trees An NTFS index sort attributes into a tree, specifically a B-tree. A tree is a group of data structures called nodes that are linked together such that there is a head node and its branches out to the other nodes. Consider Figure 11.13(A), where we see node A on top and it links to nodes B and C. Node B links to nodes D and E. A parent node is one that links to other nodes, and a child node is one that is linked to. For example, A is a parent node to B and C, which are children of A. A leaf node is one that has no links from it. Nodes C, D, and E are leaves. The example shown is a binary tree because there are a maximum of two children per node. Figure 11.13. Examples of A) a tree with 5 nodes and B) the same tree that is sorted by the node values FIG- 11.3 Trees are useful because they can be used to easily sort and find data. Figure 11.13(B) shows the same tree as we saw on the left side, but now with values that are assigned to each node. If we are trying to look up a valu
Read more

eCDFP (Module-6) (Window Forensics) (Part - 1 )

Image
လက်ရှိအချိန်မှာ PC/Laptop သုံးစွဲတဲ့အထဲမှာ Window အသုံးပြုသူက ကမ္ဘာမှာ အများဆုံးဖြစ်ပါတယ်။ Operation System အနေနဲ့ကြည့်မယ်ဆိုရင် ဒုတိယအများဆုံးဖြစ်ပါတယ်၊ ပထမအများဆုံးကတော့ Android ဖြစ်ပါတယ်။ Window 1.0 ကနေ အခုနောက်ဆုံးထွက်တဲ့ Window 11 အထိမှာ လက်ရှိလူတွေ အများဆုံးအသုံးပြုတာကတော့ Window 10/ Window 11 ဖြစ်ပါတယ်။ Forensics Analysis လုပ်မယ်ဆိုရင် Window ကနေရနိုင်တဲ့ Artifact (2) မျိုးရှိပါတယ်။ (1) System Artifacts  (2) User Artifacts  System Artifacts  ကတော့ Window Operation System   ကနေရနိုင်တဲ့ Artifacts တွေဖြစ်ပါတယ်။  System Artifacts Example  Registry Artifacts Event Logs File System Artifacts (Master File Table) Prefetch Files Volume Shadow Copies  User Artifacts ကတော့ User အသုံးပြုတဲ့ Computer ပေါ်မှာ User ကနေအသုံးပြုတဲ့ Activity တွေဖြစ်ပါတယ်။ တစ်ကယ်တန်း Forensics Analysis လုပ်မယ်ဆိုရင် System Artifacts ကိုရော User Artifacts ကိုရော Analysis ပြုလုပ်ပါတယ်။  User Artifacts Example  UserAssist  LNK Files Browser Artifacts  Recycle Bin  Recent File  Jump Lists  .LNK File (Shortcut) An
Read more