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Go Back to Reverse Engineering Malware 101
Section 1: Fundamentals
Environment Setup
In this section you will be setting up a safe virtual malware analysis environment. The virtual machine (VM) that you will be running the malware on should not have internet access nor network share access to the host system. This VM will be designated as the Victim VM. On the other hand, the Sniffer VM will have a passive role in serving and monitoring the internet traffic of the Victim VM. This connection remains on a closed network within virtualbox.
Installing VirtualBox
For windows and osx, follow the instructions in the install binary.
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Download Victim and Sniffer VMs
Please use the utility 7zip. Unzip the files with 7zip below and in VirtualBox File->Import Appliance targeting the .ova file.
- MD5sum: 7d4f2ff359cd74eec3cae7b16a916939 Updated 6/30/2017
- OS: Windows 7 Service Pack 1
- Architecture: Intel 32bit
- Username: victim
- Password: re1012017
- IP Address: 192.168.0.2
- Gateway: 192.168.0.1
- Zip size 3.7G, Final size required 10G
Note: If the VM is rebooting on you, open a command prompt with admin privileges and run "slmgr /rearm", then reboot. It should reset the VM's trial version.
- MD5sum: f9c9214475560ab0b019654560e9d3b8 Updated 6/30/2017
- OS: Ubuntu 16.04.2 LTS Desktop
- Architecture: Intel 64bit
- Username: sniffer
- password re1012017
- IP Address: 192.168.0.1
- Gateway: 192.168.0.1
- Zip size 1.9G, Final size required 6G
Post Install Instructions
Note: If you are having problems getting the VM to run, revert to the AnalysisReady snapshot, then right-click on the VM and select discard the saved state.
- Install VirtualBox CD on both VMs: Devices->Insert Guest Additions CD Image
- If it doesn't auto appear, navigate to the CD Drive to install
- Follow install directions from the Guest Additions Dialog
- Note: it will require install privileges so insert passwords for each VM
- Shutdown Both VMs after you have installed the Guest Additions CD.
- Victim VM: Devices->Drag and Drop->Bidrectional
- Victim VM: Devices->Shared Clipboard->Bidirectional
- Both VMs: Devices->Network->Network Settings
- Select Attached to
Internal Network - Name should mirror both VMs. Default is
intnet
- Run/Play both VMs to verify network connectivity
- Important While running, take a snapshot of each VM and name each "Clean". This will save a clean slate for you to revert the VM image back to.
- Sniffer VM: Ensure
inetsimis running
- Open terminal and run:
ps -ef | grep inetsim - If no output, run:
/etc/init.d/inetsim start - Run the ps command again to confirm it's running.
- Expected output:
- Victim VM: test connection to Sniffer VM
- In the search bar, type
cmd.exeto open terminal - Run command:
ping 192.168.0.1 - Expected output:
- Sniffer VM: Devices->Shared Folders->Shared Folders Settings
- On your Host, create a folder called
sniffershare - In virtual box select Add New Shared Folder icon and navigate to the folder you just created (sniffershare)
- In Sniffer VM, open the terminal and run command:
mkdir ~/host; sudo mount -t vboxsf -o uid=$UID,gid=$(id -g) sniffershare ~/host