🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: alt.comp.virus
Article #283

Re: Win32/RAMNIT.A Anyone?

#283
From: Dustin
Date: Sat, 31 Jul 2010 23:21
187 lines
10051 bytes
John Slade <hhitman86@pacbell.net> wrote in
news:L0p4o.32466$OU6.4877@newsfe20.iad: 

> On 7/29/2010 1:40 PM, David H. Lipman wrote:
>> From: "John Slade"<hhitman86@pacbell.net>
>>
>> | On 7/29/2010 3:24 AM, David H. Lipman wrote:
>>>> From: "John Slade"<hhitman86@pacbell.net>
>>
>>>> | On 7/27/2010 11:17 PM, RJK wrote:
>>
>>
>>>>>>       "David H. Lipman"<DLipman~nospam~@Verizon.Net
>>>>>>       <mailto:DLipman~nospam~@Verizon.Net>>   wrote in message
>>>>>>       news:i2o47d0214h@news2.newsguy.com...
>>>>>>       From:
>>>>>>       "russg"<russgilb@sbcglobal.net<mailto:russgilb@sbcglobal.n
>>>>>>       et>> 
>>
>>>>>>       | snip stuff about experienced posters only.
>>
>>>>>>       | I come here to learn, and there are some experts here.
>>>>>>       | The OP considers himself an expert and only wants
>>>>>>       | talk to experts. I would say his final approach of
>>>>>>       | wiping and re- installing the OS (which he didn't
>>>>>>       | mention), but first trying to save .docs, mp3 and other
>>>>>>       | important files, is the only solution. I learned that
>>>>>>       | RAMNIT.A is a PE infector, infects other known files,
>>>>>>       | like IE. Here's some info at sophos.com:
>>
>>>>>>       |
>>
>>>>>> http://www.sophos.com/security/analyses/viruses-and-spyware/w32p
>>>>>> atchedi.html?_log_ from=
>>>>>>       | rss
>>
>>>>>>       | The OP knows the name of the malware, so he must have
>>>>>>       | submitted a sample somewhere.
>>
>>>>>>          From Dave's first post...
>>>>>>       "Does anybody have EXPERIENCE with Win32/RAMNIT.A ? I'm
>>>>>>       having a devil of a
>>>>>>       time removing it. The only tool the detects it
>>>>>>       consistently is MS Security
>>>>>>       Essentials, and MSSE keeps counting it and "disinfecting"
>>>>>>       it." 
>>
>>>>>>       He didn't submit a sample somewhere, MSE scanned the
>>>>>>       system, detected it
>>>>>>       (Win32/RAMNIT.A ), but MSE failed to full remove and
>>>>>>       clean the system of it. Dave also
>>>>>>       indicated he tried Avast to no avail.
>>
>>>>>>       --
>>>>>>       Dave
>>>>>>       http://www.claymania.com/removal-trojan-adware.html
>>>>>>       Multi-AV - http://www.pctipp.ch/downloads/dl/35905.asp
>>>>>>       Having cast my eye through this post, I think I would
>>>>>>       have given PrevX a go :-)
>>>>>>       ...and having read
>>>>>>       http://www.symantec.com/security_response/writeup.jsp?doci
>>>>>>       d=2008-011517-3725-99 
>>
>>>>>>       ...I think (seeing as Sophos is armed against it), I'd
>>>>>>       try Sophos CLS from Bart PE cd :-)
>>
>>>>>>       regards, Richard
>>
>>
>>
>>>> |        It seems the information I found on this worm is that it
>>>> | probably hides in the "system volume information" folder that
>>>> | is "read only" and "hidden" by default. The worm just keeps
>>>> | getting reinstalled and can't be cleaned unless the permissions
>>>> | are changed for that folder. The information on this site links
>>>> | to instructions for cleaning RAMNIT.A.
>>
>>>> | http://www.ca.com/securityadvisor/virusinfo/virus.aspx?id=81059
>>
>>>> |       This links to information on how to disable "system
>>>> | restore" in order to remove the infection. It may be possible
>>>> | to use some offline scanner like BitDefender to remove the worm
>>>> | but it's better done in Windows.
>>
>>>> Sorry, you are mis-interpreting the information.
>>
>>>> Malware doesn't "hide" in the "system volume information" folder.
>>>>  That is where the System Resore cache resides.  What they are
>>>> talking about is removing restore points such
>>>> that you won't re-infect the PC if you restore the PC from a
>>>> restore point that had made
>>>> in an infected condition.
>>
>> |       Some malware specifically uses the "system volume
>> | information" folder to reinfect the computer. It will infect
>> | multiple restore points even those that were there before the
>> | particular worm was introduced. I've had some experience with
>> | these. 
>>
>>
>>>> Howver, I have learned that ist is NOT a good idea to dump the
>>>> System Restore cache while
>>>> cleaning a PC.  It is better to have an infected, working, PC
>>>> than to have a a PC that may
>>>> be unstable and you can't restore the PC to a stable but infected
>>>> condition.  Once the PC
>>>> is thouroughly cleaned and verified and is stable then you you
>>>> can dump the System Restore
>>>> cache.
>>
>> |        This is one reason us PROFESSIONALS do a complete drive
>> | backup before we remove the infection in this way. That way if
>> | something goes wrong, you can always go back to the beginning.
>>
>> |       It's possible to allow writing to the folder in question.
>> | I have cleaned a few computers in this way and I usually find
>> | that the restore points are not worth saving. I've had
>> | absolutely no systems lost due to cleaning out the system
>> | restore points. Never lost one and never needed to use the
>> | backup on these types of infections. I find it better to have a
>> | professional do the malware removal than someone who risks
>> | loosing everything because they're afraid to remove the restore
>> | caches.
>>
>> | John
>>
>>
>> You said...
>> "Some malware specifically uses the "system volume information"
>> folder to reinfect the computer."
> 
>       Yes that's exactly what I said. One think I've noticed 
> from 25 years of seeing malware is that the writers of malware 
> will use anything and everything to infect a system. They will 
> make it hard as possible to remove them too.
> 
>>
>> Since you also stated "...us PROFESSIONALS...".
> 
>       The professional thing to do is make a backup so you can 
> do what needs to be done to repair the system. I don't usually 
> hear other professionals say afraid to do something as simple as 
> removing restore points to repair a system.
> 
>> What is that malware spaecifically.  You should know it or it
>> should be in your notes. 
>>
> 
>         I don't remember the exact name of the worms and trojans 
> as it was over a year ago when I removed the last one. There are 
> so many variants of existing malware and new malware out there. 
> As for my notes, I don't need notes on specific malware I just 
> do what it takes to remove whatever it is. My notes deal mostly 
> with behavior of the malware and what it takes to remove it. 
> However I still have the scanner logs I did then and I'll look 
> through them. You should also know that scanners can find 
> malware and not give it a name because it detects signatures and 
> behavior. The particular malware may not be in the database as yet.

Wow. I had no idea.. /sarcasm.

>        You should know there is malware out there that will 
> trash the registry and it's backup. It will require some sort of 
> reinstall to get the system back working. I found it very rare 
> that I need to do a full reformat and reinstall because of 
> malware. Some malware will also corrupt system files and when 
> you remove them with scanners, it will make the installation 
> unbootable. This is yet another reason professionals will make a 
> backup if possible before removing infections.

What software do you use for the backup? Are you storing the backup on 
read only media or a hard drive that could fail for any reason?
 
>       I know there are a lot of fly-by-night computer repair 
> people who are just there to do a quick fix and get paid, I find 
> myself cleaning up after a lot of them.

I've encountered a few of those in my time as well.... I enjoy the work 
they provide me tho. Tell me something, John, as a PROFESSIONAL, have 
you written any of the tools you use for cleanup; or do you use the 
work others have written, such as myself, David lipman and many others?



-- 
"I like your Christ. I don't like your Christians. They are so unlike 
your Christ."  - author unknown.
Technical Details
Message-ID: <Xns9DC6C5344186EHHI2948AJD832@69.16.185.247>
Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!npeer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!post02.iad.highwinds-media.com!newsfe15.iad.POSTED!7564ea0f!not-for-mail
References: <i2lolb$s5r$1@news.eternal-september.org> <i2mveh$ogf$1@news.eternal-september.org> <i2nfok0tgi@news4.newsguy.com> <i2ns3d$ser$1@news.eternal-september.org> <i2nvud$mfo$4@news.eternal-september.org> <i2o1or01uos@news2.newsguy.com> <56e3916c-4af4-41a6-9f65-ea55a89369fa@i28g2000yqa.googlegroups.com> <i2o47d0214h@news2.newsguy.com> <dYP3o.40115$3%3.20843@newsfe23.iad> <tE74o.32165$OU6.25112@newsfe20.iad> <i2rksi028go@news3.newsguy.com> <Crj4o.33326$Bh2.32962@newsfe04.iad> <i2sopq01lhf@news4.newsguy.com> <L0p4o.32466$OU6.4877@newsfe20.iad>

Show Full Headers
Complete Article Headers
X-Google-Thread: fcd68,b851b95f3c6d1e77
X-Google-NewGroupId: yes
X-Google-Thread: 111298,b851b95f3c6d1e77
X-Google-NewGroupId: yes
X-Google-Thread: 115dc1,b851b95f3c6d1e77
X-Google-NewGroupId: yes
X-Google-Thread: fa874,b851b95f3c6d1e77
X-Google-NewGroupId: yes
X-Google-Attributes: gid67dc2eda8a,gide9d2b45abe,gidb181582988,gidaa617e85ca,domainid0,public,usenet
X-Google-Language: ENGLISH,ASCII-7-bit
Path: arc1-ca.pugleaf.net!g2news1.google.com!news1.google.com!npeer02.iad.highwinds-media.com!news.highwinds-media.com!feed-me.highwinds-media.com!post02.iad.highwinds-media.com!newsfe15.iad.POSTED!7564ea0f!not-for-mail
Newsgroups: alt.comp.virus,alt.comp.anti-virus,microsoft.public.security.virus,ba.internet
Subject: Re: Win32/RAMNIT.A Anyone?
From: Dustin <bughunter.dustin@gmail.com>
References: <i2lolb$s5r$1@news.eternal-september.org> <i2mveh$ogf$1@news.eternal-september.org> <i2nfok0tgi@news4.newsguy.com> <i2ns3d$ser$1@news.eternal-september.org> <i2nvud$mfo$4@news.eternal-september.org> <i2o1or01uos@news2.newsguy.com> <56e3916c-4af4-41a6-9f65-ea55a89369fa@i28g2000yqa.googlegroups.com> <i2o47d0214h@news2.newsguy.com> <dYP3o.40115$3%3.20843@newsfe23.iad> <tE74o.32165$OU6.25112@newsfe20.iad> <i2rksi028go@news3.newsguy.com> <Crj4o.33326$Bh2.32962@newsfe04.iad> <i2sopq01lhf@news4.newsguy.com> <L0p4o.32466$OU6.4877@newsfe20.iad>
Organization: Core Technologies
Message-ID: <Xns9DC6C5344186EHHI2948AJD832@69.16.185.247>
User-Agent: Xnews/5.04.25
X-Face: ")a1c1@v4695TOAAGDV"2*Q?\^40C9=M@Fw'c:YhY])Sb=T`-ev$|P|4Kff_BGW@l:=$o}Ivdx{blP|(XC-zAtj&8NNuo3Ie[v{NUwjU9Bf>sb*ylTx=^QUWZ|z\=w>zy<!.+?7@yh&_[]A?j_\OV-Rf7+Wv3r3.!>eQ=2pWPz5M%]9-UrUud}+
Lines: 187
NNTP-Posting-Host: pmnhnenpacjmifcigddbhoidbeoljelo
X-Trace: ibafepnipngekpdohajekhgjjdgmjengkfopagfgknalofenpmnhnenpacjmifciabcdoifdfjlfndakmkfhbokfegkeeofmobpeelemhcendhjimilgfcbnncolnoikplepgefcpbbnokgh
NNTP-Posting-Date: Sat, 31 Jul 2010 23:21:35 UTC
Date: Sat, 31 Jul 2010 23:21:35 GMT