notes/compression.txt at master · ThePacketBender/notes · GitHub

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compression

TAR
.zip
	unzip file.zip
	7z x file.zip
.gz, .gzip
	gunzip file.gz
	gzip file
.tar
	tar xvf file.tar
.tar.gz
	tar xzvf file.tar.gz file.tgz
	tar xf archive.tar.gz
.tar.bz2
	tar vxjf file.tar.bz2
.tar.xz
	tar xf file.tar.xz
	tar xjf file.tar.xz
	unxz file.tar.xz && tar xvf file.tar

tar -C /home/me -xvf yourfile.tar
	--extract archive to target directory

Password-protect encrypted file archives
	TAR
tar czvf - directory | gpg --symmetric --cipher-algo aes256 -o passwordprotectedarchive.tar.gz.gpg
	-gpg encrypt a gnu-zipped tarball (.tar.gz/.tgz)
gpg -d passwordprotectedarchive.tar.gz.gpg | tar xzvf -
	-decrpyt password-protected gzipped tarball archive
	GZIP
mcrypt -z plaintext
	-Compress & Encrypt
mdecrypt -z plaintext.gz.nc
	-Decrypt and extract
		-m(de)crypt flag -z to compress at gzip archive
cat plaintext | gzip | aespipe > plaintext.gz.aes
cat plaintext.gz.aes | aespipe -d | gunzip > plaintext
	7ZIP
7z a -p<password> <someprotectedfile>.7z file1.txt file2.txt
	-password protect (a) file(s) archived as 7z
cat <somefile> | 7z a -si -p<password> <someprotectedfile>.7z
	-password protect (a) file(s) archived as 7z taking stdin as file handle
	BCRYPT
bcrypt -r plaintext
bcrypt -r plaintext.bfe


Grepping Archives
.zip, .z
zipgrep something file.zip
.gz, .tar.gz
zgrep foor file.gz
zgrep -eir '(this|that)' file.gz
.tar.gz
tar xf file.tar.gz --to-command "awk '/foor/ { print ENVIRON[\"TAR_FILENAME"]; exit}'"
	--prints names of archived files containing pattern
tar zxf file.tar.gz --to-command 'grep --label=$TAR_FILENAME" -H PATTERN ; true"
function grep-archive() {
	for i in $(tar -tzf "$1"); do results=$(tar -Oxzf "$1" "$i" | grep --label="$i" -H "$2") && echo "$results"; done
}
grep-archive file.tgz "pattern"
zcat file.tar.gz | grep -ai pattern

Cracking
.zip
	fcrackzip –u –c 1 –p aaaaaaaa ‘/root/Desktop/Test.zip’
	fcrackzip –u –D –p ‘/root/Desktop/dic’ ‘/root/Desktop/Test.zip
winzip
	zip2john file.zip | cut -d ':' -f 2 > hashfile
	>hashcat64 -a 0 -m 13600 hashfile /usr/share/wordlists/rockyou.txt
	>john hashfile --format=ZIP

7z2john
72hashcat
rar2john

C:\bin\hashcat-5.1.0>hashcat64 -h | findstr Archives
  11600 | 7-Zip                                            | Archives
  12500 | RAR3-hp                                          | Archives
  13000 | RAR5                                             | Archives
  13200 | AxCrypt                                          | Archives
  13300 | AxCrypt in-memory SHA1                           | Archives
  13600 | WinZip                                           | Archives