Articles, Blog

Virus.DOS.Anna (Merry Christmas!)

December 24, 2019

Hello everyone
and Merry Christmas! Today we’re talking a
look at the Anna DOS Virus. Now, this virus is
not very destructive, nor is it very
complicated. It’s a pretty straightforward
calm, violent vector. But, it is holiday themed
and pretty mean-spirited. So, we’re going to
take a look at it today. But, before we run the virus,
we’re going to take a look at a few of our best friends. Namely, “GRAPHICS.COM”. Which of course
weighs 19,742 bytes. And also, “SYS.COM” Which weighs
in 9,432 bytes. Now, when Anna
is executed, it seaches out, and finds
one .com file and infects it. It doesn’t do anything fancy,
like going into memory and infecting files,
as they’re ran. Nope, when an infected file is run,
it finds another file, and infects it. So, let’s go ahead and run Anna! So we can see, this
was originally a sacrifical goat file,
in its own. It’s a “SelfChecking AntiStealth Goat
COM/EXE” file, and the virus might be active. And that is, of
course, true. Anna is now present, and has
infected another .com file in the directory. We’ll run this a few more times
and see if we can infect either “GRAPHICS”
or “SYS” Pardon the beeping,
but, it wouldn’t really be a DOS virus video without
at least some beeping, right? So, let’s look at
GRAPHICS.COM. File size is unchanged, so
it has not yet been infected. How about “SYS”? “SYS” has been infected!! It’s gone to 10,166 bytes. So, every time
we run “SYS”. There’s a bit of extra
hard disk activity. And it seeks out and infects another
uninfected file in the same directory So, we’ll simply
run it a few times. Eventually, our entire
disk will be infected. And there goes “GRAPHICS,”
it has been infected and now, weighs 20,476 bytes. Now, this virus probably
did not spread very far, back in the day, because
its payload is very obvious. It activates any
day in December. So we’ll change it
to today’s date. Christmas! And when we run
any infected file, We hear a beep, and
a message says: “Have a Cool Yule from the
ARcV xCept Anna Jones” “I hope you get run over by a Reindeer
Santas bringin’ you a Bomb, All my” “Lurve – SlarTiBarTfAsT, (c) ARcV
1992 – England Raining Again” I think we can all relate
to the Anna DOS virus. I believe every one of us knows at least one
person who might benefit from Santa bringing them a
bomb in their stocking. So, this virus in this video go out
to all the Anna Jones’ all over the world. Those, who might benefit from a
little less Christmas cheer by receiving an explosive
device in their presents. Nah, I’m just kidding. But I do hope you and yours
have a very Merry Christmas, Happy holidays, happy
whatever you may celebrate. Even you,
Anna Jones. I hope you did not actually
get run over by a reindeer. At the worst, I hope it was
only an elk, so, that’s about it for the Anna DOS virus. Thank you very much for watching. Merry Christmas. Take care. [subtitles—leemetme] [Seek Test] Merry Christmas
from the Seek test.


  • Reply HostGrady December 25, 2017 at 12:08 pm

    Merry Christmas and happy new year

  • Reply Kazami December 25, 2017 at 12:11 pm

    best Christmas present

  • Reply Eduardo W. December 25, 2017 at 12:18 pm

    What would Santa leave on Danooct1's stocking?

  • Reply Martin M December 25, 2017 at 12:20 pm


  • Reply Stefan Daraban December 25, 2017 at 12:27 pm

    Merry Christmas danooct1! 😀

  • Reply ツaxel7542 December 25, 2017 at 12:31 pm

    Merry xmas

  • Reply Sovi December 25, 2017 at 12:34 pm

    “What are your plans for Christmas?”

    “Oh, you know, just run a virus on my MS-DOS machine”

  • Reply Talianna Taylor December 25, 2017 at 12:44 pm

    Merry Christmas (and Happy Holidays, for those who don't celebrate Xmas), and have a very Merry Christmas, Dan!

  • Reply Milokiss82 December 25, 2017 at 12:48 pm

    Merry Christmas to you, Dan, and you too, Mr. Test

  • Reply miminepho December 25, 2017 at 1:24 pm

    Merry Christmas 🙂

  • Reply Ali Furkan Yıldız December 25, 2017 at 1:25 pm

    Hey mites im not a mite!
    Merry Virustmas!

  • Reply hellhunter December 25, 2017 at 1:26 pm

    Turkish subtitles please!!"

  • Reply Mr. Poptart December 25, 2017 at 1:33 pm

    Merry Christmas man, to many more years of virus testing

  • Reply Phoebe shirasawa December 25, 2017 at 1:35 pm

    Merry christmas too fam????

  • Reply Shahed Noor December 25, 2017 at 1:41 pm

    Siam alam my best friend XD

  • Reply A1Golden Runner December 25, 2017 at 1:43 pm

    Thanks for the present!

  • Reply crimsonalgorithm December 25, 2017 at 1:49 pm

    merry kirmoss

  • Reply Scientiae Magicae December 25, 2017 at 1:55 pm

    If you don't celebrate Christmas on Christmas. No one cares, stop your fucking whining.

  • Reply crodlay December 25, 2017 at 2:00 pm

    Merry Christmas! 😀

  • Reply Logic44 December 25, 2017 at 2:12 pm

    thanks for this amazing christmas present Dan and Fizz

  • Reply Bri December 25, 2017 at 2:12 pm

    I got a HP Notebook with a touchscreen running Windows 10 home with 4MB RAM and 500 GB

  • Reply MncDssctn December 25, 2017 at 2:24 pm

    Happy Holidays. And if that offends you then how about Happy Shut The Fuck Up.

  • Reply Fermitu Poupon December 25, 2017 at 2:27 pm

    @Edward Fish it's just an executable file of the appropriate type for the virus. It's called a sacrificial goat because it's only purpose is to carry the virus until it is eventually destroyed.

  • Reply Zontar82 December 25, 2017 at 2:35 pm

    pardon for the beeping? i would watch videos with dos beepings for hours . Merry Christmas !

  • Reply Max Forrest December 25, 2017 at 2:50 pm

    Merry Christmas

  • Reply Meme Supreme December 25, 2017 at 2:53 pm

    Oh, you mean like that kid that tried to say that it’s a good idea to lie to AdSense so you get money to us on Twitter a while back?

  • Reply __ December 25, 2017 at 2:55 pm

    Awesome Christmas gift, a danooct1 video!

  • Reply SympathyTea December 25, 2017 at 3:15 pm

    merry chroistmus

  • Reply WishMakers December 25, 2017 at 3:37 pm

    Merry Christmas Dan!

  • Reply Parzival Wolfram December 25, 2017 at 4:08 pm

    Wouldnt've been complete without some floppy-grinding seek testing.

  • Reply Lefty December 25, 2017 at 4:16 pm

    Merry Christmas!

  • Reply Faramik2000 December 25, 2017 at 5:29 pm

    You sound more cheerful

  • Reply SargentVR December 25, 2017 at 5:29 pm

    have a good holiday my dude

  • Reply Adrian Silva December 25, 2017 at 6:27 pm

    I think about something is missing…
    3:10 Oh, here is.
    Merry Christmas Dan!

  • Reply Crucial Muzic December 25, 2017 at 6:40 pm

    > FOR /l %i in (1,1,10) DO sys
    A bit overkill for this, but figured someone would
    appreciate it, maybe? Oh and Merry Christmas, everyone!! 🙂

  • Reply Boaty Mcboatface December 25, 2017 at 7:58 pm

    That seek test. I love you Dan <3
    Merry Christmas!

  • Reply SpaceKraken December 25, 2017 at 8:16 pm

    Duuuuun duuun brr duuun duun
    Merry christmas from the seek test.

  • Reply glotch December 25, 2017 at 8:34 pm

    WHOO christmas danooct video

  • Reply Rohan Ramesh December 25, 2017 at 8:40 pm

    Happy Holidays, Dan!

  • Reply Carol Stott December 25, 2017 at 9:11 pm

    "At worst, I hope it was only an Elk" is now my tagline

  • Reply Christian Camilo Méndez Pulido December 25, 2017 at 9:43 pm

    Hey man, can you Explain "video5599.mp4.7z" virus?

  • Reply Joshua R. M December 25, 2017 at 9:49 pm

    Merry Christmas, Dan. 🙂

  • Reply Shardion December 25, 2017 at 10:01 pm

    1 9 , 7 4 2 B Y T E S

  • Reply AtariGarcia December 25, 2017 at 11:15 pm

    Dan's voice sounds slightly different….=.=

  • Reply Edgar Cleutjens December 25, 2017 at 11:28 pm

    I'm really happy that you can show about the function and working virus. I hope you getting more inmany many years. even it's that possible also android virusses show?

  • Reply David Schwarz December 26, 2017 at 12:47 am

    Merry Christmas from Germany 🙂

  • Reply Cybernetic Soul December 26, 2017 at 12:47 am

    merry Christmas!

  • Reply Taels Doll December 26, 2017 at 12:54 am


  • Reply Winter30 December 26, 2017 at 1:25 am

    Do asmr

  • Reply PupsTheMechanic December 26, 2017 at 1:48 am

    Merry Christmas Dan!

  • Reply Edward December 26, 2017 at 2:33 am

    …without some beeping? BEEP BEEP repeats intensifying as it goes

  • Reply LizzybellGaming December 26, 2017 at 2:35 am


  • Reply Marioisawesome82 December 26, 2017 at 2:49 am

    When Anna is executed, the new death row inmate is called up for their execution.

  • Reply SirChubbyBunny December 26, 2017 at 3:18 am

    Jingle, jingle

  • Reply KuraiMuin December 26, 2017 at 3:50 am

    Merry christmas from the seek test? I couldn't be any happier! Thank you Dan, keep making great content and I wish you and yours happy holidays!

  • Reply Kaiden Mikami December 26, 2017 at 5:50 am

    Isn't Slartibartfast a character from The Hitchhiker's Guide to the Galaxy? The old man who helps Arthur and stuff

  • Reply Hexinity December 26, 2017 at 8:38 am

    Well. My name is now a virus.

  • Reply Ailurophile December 26, 2017 at 9:08 am

    My name is Anna! This is awesome!

  • Reply Helmy Patria December 26, 2017 at 9:41 am

    Merry Christmas ??

  • Reply Рустем Валиев December 26, 2017 at 10:35 am

    How about Bad Rabbit virus?

  • Reply Olika120 December 26, 2017 at 11:21 am

    merry christmas

  • Reply Enderman December 26, 2017 at 12:20 pm

    merry christmas!

  • Reply LaughTrack December 26, 2017 at 3:58 pm

    The spirit of Christmas is giving… viruses.

  • Reply Janis Wespers December 26, 2017 at 4:15 pm

    Merry Sleep-All-Day-mas

  • Reply Evan December 26, 2017 at 4:32 pm

    The best Christmas present, a danooct1 vid.

  • Reply MongoskiKongoski December 26, 2017 at 7:26 pm


  • Reply My Username is Pointlessly Long and Intimidating December 26, 2017 at 8:20 pm


  • Reply no no December 27, 2017 at 2:01 am

    you should try the android malware Loapi, if possible. I haven't seen any demonstration of it and I'm curious about it

  • Reply Wierdio December 27, 2017 at 2:21 am


    screw you YouTube notifications

  • Reply Kraft December 27, 2017 at 5:26 pm

    face reveal as the Christmas gift

  • Reply xtrabaka December 27, 2017 at 6:13 pm

    merry christmas daniel 🙂

  • Reply EvieTheFlareon December 27, 2017 at 7:30 pm

    This is always a good xmas present….

  • Reply Hans5958 December 28, 2017 at 9:14 am

    Merry Christmas to you too, Seek Test!

  • Reply Big Rat December 28, 2017 at 9:55 pm

    hey danooct, I was wondering, how would you like me to send you a malware I made, it does not do anything where it will spread, but it does delete system files, so if you do want me to send it to you, tell me, and I will send it your way.

  • Reply max December 29, 2017 at 6:10 pm

    happy christmas and a merry new year

  • Reply Orimatizētājs December 29, 2017 at 10:01 pm

    Hey, wanna try "Sonic Gather your PC info" basically that game has DRM and is fucked up, i u play i and then when you're ingame and you type "Sonic Gather Hacks/Cheat" then game turns worse and your browser will automaticlly turn off.

  • Reply OmegaKnightGTX December 29, 2017 at 11:35 pm

    Can you check out the Sonic Gather Battle Virus/DRMs?

  • Reply _wtf_memes_ YT December 31, 2017 at 6:03 am

    What did you get for Christmas, I got a virus

  • Reply Arshad Ali December 31, 2017 at 6:20 am

    Great, now everyone following this channel is on a terror watchlist. MERRY CHRISTMAS! 😀

  • Reply Marko DePasquale December 31, 2017 at 9:45 pm

    Does anyone here know how to remove VMXClient.exe?

  • Reply creeps the thing January 1, 2018 at 8:59 am

    Named after the TTS voice on Windows Vista?

  • Reply CostinXMN January 2, 2018 at 8:03 pm

    Hey dan!! Merry Christmas

  • Reply Kiritortino Games January 20, 2018 at 4:44 am

    Am I late?

  • Reply MasterDethronerX2 February 6, 2018 at 10:27 pm

    You should showcase Sonic Gather Battle on this channel; it's DRM is basically a virus.

  • Reply Ricardo Rivera-Aguilar February 18, 2018 at 6:44 pm

    I’m 3 months late to the party

  • Reply Wyvern February 18, 2018 at 7:45 pm

    We miss you

  • Reply Lupo Leone April 6, 2018 at 6:43 pm

    How many quotes from THE GUIDE?! XD

  • Reply Ómen April 15, 2018 at 12:39 pm

    where do you get that dos viruses, im trying to get one on my vm

  • Reply Norrene Kern June 10, 2018 at 10:31 pm


  • Reply cyndie26 June 12, 2018 at 4:03 am

    Just out of curiosity, if a French, Spanish, or German version of DOS is installed, would the date be formatted as DD-MM-YY rather than MM-DD-YY? (Also YY-MM-DD for Korean DOS?)

  • Reply Nextracer1 September 1, 2018 at 5:29 pm

    1 9 , 7 4 2 b y t e s

  • Reply bingobango October 2, 2018 at 5:54 am

    fuck yeah slartibartfast is my favourite hitchikers guide character

  • Reply JaKaWa November 7, 2018 at 6:47 pm

    Hello there! could you please test this virus?!DsdXyajB!k_qNkYNrVhZ2FgeELMr0v9HNN5N7rianYI4OYkLJyvY it has been made by me!

  • Reply Alessandra Ricotta December 20, 2018 at 9:01 pm

    I absolutely need a seek test audio file for the notifications on my phone!

  • Reply Dezmo Bluefire December 21, 2018 at 2:33 pm

    Hey dan. Any chance you could upload a recording of your dos machine starting up. I always loved the sound of the floppy drives starting and homing. Keep up the good work and happy holiday

  • Reply :D January 28, 2019 at 11:10 pm

    Wait, Slartibartfast? That's a character from The Hitchhiker's Guide to the Galaxy!

  • Reply Butthead April 13, 2019 at 3:49 pm


  • Reply Shelbi June 12, 2019 at 3:53 am

    Lol the copyright though

    Yeah we made a virus and stuff but we are more afraid of being copyrighted than them figuring out the virus.

    Wait, they need to run the virus to find the copyright claim?

    oh shi-

  • Reply wedddealer December 9, 2019 at 7:47 am

    all i want for christmas is the seek test!! you're really spoiling us dan!

  • Reply Greg does Stuff December 21, 2019 at 4:17 pm

    Dood congrats at hitting 250k subs! I’m the 250k’th sub

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