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Aug 28th, 2008, 2:10pm
   Mischel Internet Security Forum
   Malware
   Trojans (Moderators: Helena, Gavin_Coe, Magnus)
   Backdoor = Trojan?		 « Previous topic | Next topic »
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Walter
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Backdoor = Trojan?
« on: Apr 4th, 2003, 2:53am »		 Quote Quote  Modify Modify
Did anyone else happen to follow the recent (yesterday, today) discussion thread at DSLReports> Forums> Security: "Aahh...trojaned" ??  
-I know vampirefo1 did, because he made several posts.
 
-it was Backdoor RsBot (Trojan ?), associated with msapp.exe process...I believe.
 
-The discussion thread was NOT easy for me to follow so, a few questions about what was discussed...
 
MY QUESTIONS:
--is "backdoor" the same as "trojan" ?
--is a "remote execution tool" the same thing as a "trojan," or "backdoor."
--has anyone else heard of Lavasoft Ad-aware 6 detecting trojans? or trojan processes??  I think this is what the poster stated--Ad-aware was the program that first detected the trojan.
--can "malware" open the door so to speak, so that a Trojan (Backdoor) can enter one's computer?  
 
Perhaps, this is what the poster was talking about:
--a Malware program (spyware) introduced a "remote execution tool," which---in turn--allowed access to a trojan? Sorry (for all the ?s)...but, as I said, I had a difficult time following that discussion. Maybe, what was being discussed is something, kind of, new?
Postscript: New Info Added. I just now revisited the dslreports thread and Peeper.120--mentioned here, by "Transaleer" (sp?) in the TrojanHunter forum--is likewise mentioned in that dslreports thread...interesting...
« Last Edit: Apr 4th, 2003, 3:23am by Walter » IP Logged
Strange as it may seem, no amount of learning can cure stupidity, and formal education positively fortifies it. S Vizinczey
Ian
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Re: Backdoor = Trojan?
« Reply #1 on: Apr 5th, 2003, 7:30pm »		 Quote Quote  Modify Modify
Can you post the link to that thread, Walter?
 
Sounds like a confusion of terms.  
 
'Backdoor' refers to the way in that may be opened by something simple for something more complex. Anything that opens a backdoor is, therefore, a Trojan (from history - the simple force opened the gates for the more complex - erm, bigger - force. I hate it when analogies get stretched like that!). The more complex program may be a Trojan, virus, keylogger, password stealer, remote access client, DDOS (distributed denial of service) bot, or anything out of a very wide choice of malware things. 'Malware' is a compaction of 'malicious software', so it stands to reason that all sorts of stuff, including 'backdoors' are covered by this.
 
Just to muddy the waters, there is a non-malicious use of the term 'backdoor', used by software writers to provide access even when the users have completely forgotten any access codes of their own (including Administrator). These are guarded like the Crown Jewels because they are hard-coded into the application and cannot normally be shut down or changed if discovered (a program would have to be patched, which is costly).
 
There are also 'droppers', though these are normally linked with viruses, so for example a naughty piccy may actually drop a nasty on the PC whilst the viewer is ... otherwise occupied.
 
'Remote execution tool' sounds like the remote access client - sort of a locked door to a remote PC for which the 'hacker' has the key, allowing access any time. It could also refer to the DDOS bot, which listens for instructions to start flooding a specific domain or IP with deliberately corrupted information, in the hope it will crash whatever's being flooded and generally cause bother to whoever looks after it.
 
AdAware does detect software that deliberately disables some security software, reducing the protection on a PC in a similar manner to Trojans, so I have heard of this before.
« Last Edit: Apr 5th, 2003, 7:34pm by Ian » IP Logged
... but crap arrives pretty much straight away.
Walter
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Re: Backdoor = Trojan?
« Reply #2 on: Apr 6th, 2003, 1:13am »		 Quote Quote  Modify Modify
Wow, loads of great information. Quite useful, now--to remember it all!  Grin
I really appreciate "pulling it all together," Ian!  Smiley The various uses of the term "backdoor," I thought was especially useful.
 
Let's see if I can do this: http://www.dslreports.com/forum/security%2C1
 
I hope that's it, had a little trouble with "copy & paste."!  Embarassed
 
For some reason, not all the information shows up as part of the link? But, if necessary, you can cut and paste the above and that will take you to the link?  
 
Maybe, it moves each day, depending on whether or not people respond to it? The last day (as of this moment) someone made a post was: 4th April.
The name of the thread is "Aahh...trojaned, by ariana." The topic was started on 2003-04-02 06:29:27. Hope that helps.  
Ian, I predict you will find it an interesting thread, TH (among other programs) is mentioned...
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Strange as it may seem, no amount of learning can cure stupidity, and formal education positively fortifies it. S Vizinczey
Ian
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Good things come to those who wait ...

   


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Re: Backdoor = Trojan?
« Reply #3 on: Apr 6th, 2003, 4:58pm »		 Quote Quote  Modify Modify
That made an interesting read - thanks Walter.
 
And to think - I got a new TH custom rule in the process!
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... but crap arrives pretty much straight away.
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