Commands tagged virus (5)

  • Find Malware in the current and sub directories by MD5 hashes

    Command makes use of the Malware Hash Registry (http://www.team-cymru.org/Services/MHR/). It parses the current directory and subdirectories and calculates the md5 hash of the files, then prints the name and sends the hash to the MHR for a lookup in their database. The 3rd value in the result is the detection percentage across a mix of AV packages. Show Sample Output


    11
    IFS=$'\n' && for f in `find . -type f -exec md5sum "{}" \;`; do echo $f | sed -r 's/^[^ ]+/Checking:/'; echo $f | cut -f1 -d' ' | netcat hash.cymru.com 43 ; done
    Neo23x0 · 2011-10-15 03:38:47 0
  • The NMAP command you can use scan for the Conficker virus on your LAN

    This was posted on reddit. replace 192.168.0.1-256 with the IP's you want to check.


    6
    nmap -PN -T4 -p139,445 -n -v --script=smb-check-vulns --script-args safe=1 192.168.0.1-254
    cowholio4 · 2009-03-31 15:15:17 3
  • Create an eicar.com test virus

    Test whether real-time virus detection is working by running this command and checking for eicar.com in /tmp. Requires real-time scanning to be enabled and active on the /tmp directory. If scanning is active, the file should be quarantined/deleted (depending on your settings) moments after running this command. If not, the (harmless) test file should remain in your /tmp directory.


    1
    echo 'K5B!C%@NC[4\CMK54(C^)7PP)7}$RVPNE-FGNAQNEQ-NAGVIVEHF-GRFG-SVYR!$U+U*' | tr '[A-Za-z]' '[N-ZA-Mn-za-m]' > /tmp/eicar.com
    cyberscribe · 2010-08-13 21:39:35 1
  • Find Malware in the current and sub directories by MD5 hashes

    This command does something similar using dig which is usually more available. Show Sample Output


    0
    for i in $(find . -type f); do echo -n "$i " ;dig +short $(md5sum $i | cut -d' ' -f1).malware.hash.cymru.com TXT; echo ; done
    cerasus · 2015-07-28 09:58:04 0
  • Search entire server for Q4 2015 obfuscated PHP malware of unknown origin.

    If this matches any files on your web server expect to find allot of malware spread throughout your server folders. Seems to target wordpress sites. Be sure to check your themes/theme-name/header.php files manually for various redirect scripting usually in the line right above the close head tag. Good luck! Show Sample Output


    0
    find / -name \*.php -exec grep -Hn .1.=.......0.=.......3.=.......2.=.......5.= {} \;
    UnklAdM · 2015-10-28 20:58:53 0

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Make a thumbnail image of first page of a PDF.
convert is included in ImageMagick. Don't forget the [X] (where X is the page number). [0] is the first page of the PDF.

Update Ogg Vorbis file comments
The "vorbiscomment" utility lets you update information such as artist names and song and album tags in an Ogg Vorbis file. You can use this command to fix any mistakes that were made when ripping an album.

Show current working directory of a process

Grabs a random image from "~/wallpapers" and sets as the background
don't bother spawning a bc process or counting the number of options, just pick a random one. 'sort -R' sorts randomly, so pick the top one.

Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Download all mp3's listed in an html page

Remove all unused kernels with apt-get
A little aptitude magic. Note: this will remove images AND headers. If you just want to remove images: aptitude remove ?and(~i~nlinux-im ?not(~n`uname -r`)) I used this in zsh without any problems. I'm not sure how other shells will interpret some of the special characters used in the aptitude search terms. Use -s to simulate.

Get AWS temporary credentials ready to export based on a MFA virtual appliance
You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

An alias to re-run last command with sudo. Similar to "sudo !!"
I didn't come up with this myself, but I always add this to my .bash_aliases file. It's essentially the same idea as running "sudo !!" except it's much easier to type. (You can't just alias "sudo !!", it doesn't really work for reasons I don't understand.) "fc" is a shell built-in for editing and re-running previous commands. The -l flag tells it to display the line rather than edit it, and the -n command tells it to omit the line number. -1 tells it to print the previous line. For more detail: $help fc

The BOFH Excuse Server

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