Skip to content

Instantly share code, notes, and snippets.

@egre55
Created November 1, 2018 18:28
Show Gist options
  • Save egre55/c9929bd4ee8c258165c2fe06806e75ca to your computer and use it in GitHub Desktop.
Save egre55/c9929bd4ee8c258165c2fe06806e75ca to your computer and use it in GitHub Desktop.
simple_case_obfuscator.sh
# simple case obfuscator
# author: @egre55
# usage: ./simple_case_obfuscator.sh Invoke-PowerShellTcp.ps1
if [ "$1" == "" ]; then
printf "\nusage: ./simple_case_obfuscator.sh Invoke-PowerShellTcp.ps1\n\n"
exit 0
fi
file=$1
limit=$(wc $file | awk -F" " '{print $3}')
max=$(($limit / 2))
cp "$1" "$1.bak"
printf "[+] created backup file $1.bak\n[+] case-encoding $1\n"
sed -i "/^$/d" $file
sed -i -E ':a;N;$!ba;s/\n/¬/g' $file
for i in $(seq 1 $max)
do
position=$(shuf -i 0-$limit -n 1)
sed -i "s/./\U&/$position" $file 2>/dev/null
done
for i in $(seq 1 $max)
do
position=$(shuf -i 0-$limit -n 1)
sed -i "s/./\L&/$position" $file 2>/dev/null
done
sed -i "s/¬/\n/g" $file
printf "[+] done\n"
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment