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Groups > alt.comp.hardware.pc-homebuilt > #40080

Re: Kaspersky Rescue Disk Report - can't see full paths

From "Apd" <not@all.invalid>
Newsgroups alt.comp.hardware.pc-homebuilt, alt.comp.anti-virus, alt.computer.security
Subject Re: Kaspersky Rescue Disk Report - can't see full paths
Date 2019-06-06 10:46 +0100
Organization Aioe.org NNTP Server
Message-ID <qdankg$11kc$1@gioia.aioe.org> (permalink)
References <nejffe97aurtm817oikhrshavi00cfgkuo@4ax.com> <qd9c1h$lh$1@dont-email.me> <qd9mah$iig$1@gioia.aioe.org> <crvgfe5ja2g8c1sktvdp0vvfkmtcd4pnj9@4ax.com>

Cross-posted to 3 groups.

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"Shadow" wrote:
> On Thu, 6 Jun 2019 01:19:56 +0100, "Apd" wrote:
>>XOR the base64 with 0xEF and you have plain text with a single
>>linefeed terminating each line. It's an XML report. Here's a line from
>>your second example, krdeicar.txt (wrapped for ease of reading):
>>
>><Event1 Action="Detect" Time="132042218823887019"
>> Object="@Filesystem[65ba0377-31a7-52e4-8e5b-5415b3a73f12]/Downloads/EICARAntiVirusTestFile.com"
>> Info="EICAR-Test-File" />
>
> Thanks for that. You must dream in hex, as I did 2 decades
> ago. Alas, all I dream about now is staying alive.

I know what you mean.

> Simple XORing. Who would have guessed?

A few years of malware analysis (and hex dreaming!) has got me used to
seeing those kind of patterns.

> Too hard for me to figure out without your help. I will now
> write a little program in free Pascal or maybe 16 bit assembler to
> automate the process, unless you can recommend freeware (no online
> datamining stuff) that does it automatically ?

McAfee made a Windows GUI tool called FileInsight which could do
base64 and XOR decode among other things but I can't find it on their
website now. I see Paul has posted some C code which does the job and
is similar to one of the several utilities I wrote myself for such
things.

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Thread

Kaspersky Rescue Disk Report - can't see full paths Shadow <Sh@dow.br> - 2019-06-05 12:21 -0300
  Re: Kaspersky Rescue Disk Report - can't see full paths Paul <nospam@needed.invalid> - 2019-06-05 17:26 -0400
    Re: Kaspersky Rescue Disk Report - can't see full paths Shadow <Sh@dow.br> - 2019-06-05 20:28 -0300
    Re: Kaspersky Rescue Disk Report - can't see full paths "Apd" <not@all.invalid> - 2019-06-06 01:19 +0100
      Re: Kaspersky Rescue Disk Report - can't see full paths Shadow <Sh@dow.br> - 2019-06-06 00:06 -0300
        Re: Kaspersky Rescue Disk Report - can't see full paths "Apd" <not@all.invalid> - 2019-06-06 10:46 +0100
          Re: Kaspersky Rescue Disk Report - can't see full paths "wasbit" <wasbitREMOVE@hotmail.com> - 2019-06-07 09:53 +0100
            Re: Kaspersky Rescue Disk Report - can't see full paths "Apd" <not@all.invalid> - 2019-06-07 10:43 +0100
            Re: Kaspersky Rescue Disk Report - can't see full paths Shadow <Sh@dow.br> - 2019-06-08 16:13 -0300
        Re: Kaspersky Rescue Disk Report - can't see full paths "David B." <BDonTJ@REMOVE.gmail.com> - 2019-06-07 08:11 +0100
      Re: Kaspersky Rescue Disk Report - can't see full paths Paul <nospam@needed.invalid> - 2019-06-06 02:15 -0400
        Re: Kaspersky Rescue Disk Report - can't see full paths "Apd" <not@all.invalid> - 2019-06-06 10:48 +0100

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