Steganography and Hiding Activities

Covert Communication

Using Covert TCP

For hiding data in TCP/IP packet headers.

Configuring Sender

Setup

echo "Secret Message!" > message.txt
wget https://raw.githubusercontent.com/cudeso/security-tools/master/networktools/covert/covert_tcp.c`
cc -o covert_tcp covert_tcp.c

Sending Message

./covert_tcp -dest 10.0.2.46 -source 10.0.2.42 -source_port 8888 -dest_port 9999 -file /root/Desktop/send/message.txt

Configuring Receiver

Setup

wget https://raw.githubusercontent.com/cudeso/security-tools/master/networktools/covert/covert_tcp.c
cc -o covert_tcp covert_tcp.c

Starting the Listener

./covert_tcp -dest 10.0.2.46 -source 10.0.2.42 -source_port 9999 -dest_port 8888 -server -file /home/s4msepi0l/Desktop/receive/receive.txt

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White Space Steganography

Using Snow

The SNOW manual page

For hiding and extracting hidden data from a text file.

Hiding Text

snow.exe -C -m "Someone this something" -p "test" original.txt modifiedOriginalFile.txt

• -m : Message

• -p : Password

Revealing Text

snow.exe -C -p "test" modifiedOriginalFile.txt

Using Stegsnow

Ubuntu Manpage: stegsnow - whitespace steganography program

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Image Steganography

Openstego

OpenStego

For hiding and extracting hidden data from an image file.

Stegonline

StegOnline

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Alternate Data Streams

Hiding files using alternate data streams.

• Copy calc from system32 folder to your test folder, Now create a text file and append the cal.exe to the file:

type calc.exe > readme.txt:calc.exe

• Now create a link to the ADS file to create backdoor:

mklink backdoor.exe readme.txt:calc.exe

• Opening the backdoor link will open the hidden file.