v2022.12.2-1930

script to check and convert blockchain hashes that have been improperly extracted

Author: cyclone-github

check_blockchain_hash.sh

@@ -0,0 +1,87 @@
+#!/bin/bash
+
+# script to check blockchain hashes in case they are foobar'd by 
+# a newb that doesn't know how to extract blockchain wallet hashes
+# by cyclone
+# v2022.12.2-1930
+
+# variables
+output="cyclone_tmp_output"
+hash="cyclone_tmp_hash"
+input_clean="cyclone_input_clean"
+
+# python2.7 version of blockchain2john.py is in included below and is xz compressed and base64 encoded
+echo -n "/Td6WFoAAATm1rRGAgAhARYAAAB0L+Wj4ArCA6VdABGIQkeKIzPDdw8z/VWX7afH8OoqQzbHokaE
+o0M6j4zKHmOtRMbC29mu1DlIhezKOF5Ggg/IKOf+ncIwE5S3uvBY3PrYmpzfS6+epehU5YVRx0RC
+ku6V/aP54IJYB9mKyG9Pmap9fZpXJJIJbSayThjEKn/QA8/ctDcu2z5YTfMCIhmbVbTRIYSLYaFw
+SY32W2OVOLSWWCoIzuZsznYf7a4xZQwdEbGvqUhnTNGFT3hQKvQ+q2v4zshGs5wSPDxtmXsKQHNJ
+NzUeb+WFDymaMCoevVdwrPrrLykWgWSVb5njLuhJ4xjwGlSyj+/FtXOXPxLtPWGvgfI+2GMu4Fxo
++4GGaipPGMRthtfxsNiJuJA2Xfgh9DxXuZWQ8WhpULiSX9GMFK7mcS9/E6ZsKBLS/aAKqIPyBY7f
+uADhw5e5m+LMJAOjNAruNfvyafqnaWMuL44gpAU96kccIr697jLL2n31uRMjw+8xbHhm2r+9tn70
+1lKZJ7euKmCCsxvZafEl3XfGLhdvqekP36kPhHeQA+LA2OTYXwspEsK5HEAZuG3WmOHXY1qSc/Er
+XKzZZDRjd+OfbCnbFXujkD27OuPxraNV5QmaEhF3FIQGMdSXu4M2U8k50h/FRIIsosQlUeLoEySz
+1DmnE6iEoH07cTxpkzlw8HdCTuxSoNjiCZ9hbro5RSuck1KdFsoGO9Xv3OLNUYE8PRJwG+j4mC7o
+PczgCJ+6f0nVf4mkPLwnCL1Rwawg3FC6gwePnAGt6UaPTLYERQOxQeVhcPCkes71/98sY1XPL70b
+AFGHBMlut3D/0zDU4C6QjoWAdH2yU/BWnjNPrjGnC7rpaE9ujMX9FtdUyD6FONMrS/oEhKpb40yH
+3pQXC4aHPBm2qr+CHawiKsHTkaDgCYf4XMn/pwlvPTONNkw+2g1bbp+6P1FzvPbHZ1P6fn+GpBVa
+L01MrvvRLpBOceiFR58RK0d9pqNG+yrlrt12kdzhbExxRH3W2wtFo3p0doBKJ+zTTG1EKsfanHPG
+F787Z+mUEAiLmSvjNj6kIHpU6vW+63vp3v8y7veTheEDVGpxTs+mHbiVrIrxXVAQ3aq33RqsX+te
+AVgmxjBGuoLw04MGa5O9gVFBQVgK0ufFTu3Ojlnuyg3qt8/9Odf/HqhZtywINAdDRbFr+Z5k7j/f
+icGQPdXFRT1ZDf9kCakfKYSUUbarzUj1LEA5RLHHQDJhwND/P8XBQwK7bVe9n0wLNwezdAAAAAAB
+OqkFVqe6qQABwQfDFQAAr+XU1bHEZ/sCAAAAAARZWg==" | base64 -d | xz -d > blockchain2john.py
+jtr_blockchain="python2.7 blockchain2john.py --base64 $output"
+
+# check prerequisites
+# python2.7
+if ! command -v python2.7 -V &> /dev/null
+then
+	clear
+    echo "Cannot find python2.7. Please make sure it is installed."
+    exit
+fi
+
+# start script
+
+clear
+
+echo "Paste a single blockchain hash to check:"
+echo
+read input_raw
+
+# parse input to remove invalid characters such as \t, \n, etc...
+echo $input_raw | tr -d '\n'| tr -d "\t" | tr -d " " | egrep -i 'blockchain' > $input_clean
+
+# main loop
+while true; do
+	# parse input hash and convert from hex to ascii
+	cat $input_clean | rev | cut -d$ -f1 | rev | xxd -p -r > $output
+	# sub loop to check if hash needs converted or not
+	while true; do
+		clear
+		echo "Checking if hash needs converted..."
+		sleep 0.5
+		# run sanity check on hash
+		cat $output | egrep -i '[[:print:]]{40,}' > /dev/null && break
+		echo
+		echo "Hash does not need converted."
+		echo
+		exit 1
+		break
+	done
+	echo
+	echo "Hash needs converted!"
+	sleep 0.5
+	echo
+	echo "Converting hash..."
+	sleep 0.5
+	echo
+	# run jtr_blockchain to convert hash
+	$jtr_blockchain | cut -d: -f2 > $hash
+	# final sanity check
+	cat $hash | egrep -i '[[:print:]]{40,}' > /dev/null && cat $hash || echo "Could not convert hash."
+	echo
+	break
+done
+
+# clean up tmp files
+rm $output $hash $input_raw $input_clean blockchain2john.py &> /dev/null