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Article #148

Re: Win32/RAMNIT.A Anyone?

#148
From: David H. Lipman
Date: Tue, 10 Aug 2010 21:14
47 lines
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From: "John Navas" <spamfilter1@navasgroup.com>

| On Tue, 10 Aug 2010 07:45:46 -0400, in
| <i3re5e$jkc$1@news.eternal-september.org>, "FromTheRafters"
| <erratic@nomail.afraid.org> wrote:

>>"John Navas" <spamfilter1@navasgroup.com> wrote in message
>>news:utd1665r4ab04coghfdir9rsn06cc3f5m8@4ax.com...
>>> On Mon, 9 Aug 2010 20:39:32 -0400, in
>>> <i3q747$ago$1@news.eternal-september.org>, "FromTheRafters"
>>> <erratic@nomail.afraid.org> wrote:

>>>>"John Navas" <spamfilter1@navasgroup.com> wrote in message
>>>>news:8a5166l8harrijvc3lh42u24s9h0b8r01h@4ax.com...

>>>>> I thought "this class of virus" would be specific enough,
>>>>> but you're right that I should have been clearer,
>>>>> and I thank you for the clarification.

>>>>Just curious, what did you mean by 'this class of virus' and the
>>>>infection of possibly needed executables?

>>> I meant the class of virus that implants its own executable files,
>>> and protects them from most methods of removal.  Sorry for not being
>>> more clear.

>>That's okay. You are correct that self-contained replicator files can be
>>deleted outright - there is nothing there that needs to be salvaged, but
>>Ramnit.a actually modifies (infects/trojanizes) preexisting program
>>files (although not with a replicant).

| That depends on the actual problem, what the anti-virus system is or is
| not able to remove and disinfect on its own.  According to this report:
| <http://www.threatexpert.com/report.aspx?md5=074a688443faea25c2589975069de044>
| Win32/RAMNIT.A modifies few essential executables.  My own experience
| with Microsoft Security Essentials (cf OP) is that only non-essential
| files are missed in this case.  Do you have experience to the contrary?

That ThreatExpert report is insuficient.

Go back and read Ant's analysis based upon the Ramnit samples I provided him with.


-- 
Dave
http://www.claymania.com/removal-trojan-adware.html
Multi-AV - http://www.pctipp.ch/downloads/dl/35905.asp 
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From: "David H. Lipman" <DLipman~nospam~@Verizon.Net>
Newsgroups: alt.comp.virus,alt.comp.anti-virus,microsoft.public.security.virus,ba.internet
Subject: Re: Win32/RAMNIT.A Anyone?
Date: Tue, 10 Aug 2010 17:14:36 -0400
Organization: DHL
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