Author Topic: Sad too see Avast failed to detect Trojan 2 times!  (Read 15048 times)

0 Members and 1 Guest are viewing this topic.

Offline atos

  • Newbie
  • *
  • Posts: 4
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #15 on: September 11, 2004, 10:48:33 PM »
But if this agobot is so old, and a lot of AV programs catch it, why avast doesn't?
I've already sent samples for them, one in September 8th and the other on the 9th, zipped.
What happened to them? It's already 11/9 and no new updates happened.

Offline Lisandro

  • Avast team
  • Certainly Bot
  • *
  • Posts: 67255
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #16 on: September 11, 2004, 10:57:55 PM »
But if this agobot is so old, and a lot of AV programs catch it, why avast doesn't?

Maybe a variant, polimorphism or whatever... I'm not a virus expert. Again, I'm not apologizing (I'm not from avast team  ;D), just telling you that could be a problem of configuration, the user must know how the programm (and its parts) works, etc.

I've already sent samples for them, one in September 8th and the other on the 9th, zipped. What happened to them? It's already 11/9 and no new updates happened.

Well, it's not so bad... Try any other antivirus company. It's summer holidays now. But, sorry, I feel your pain and don't want to give an answer for all your needs... It's a pity what happened. What can we do now?
The best things in life are free.

Offline bob3160

  • Avast √úberevangelist
  • Probably Bot
  • *****
  • Posts: 44958
  • 61 Years of Happiness
    • bob3160 Protecting Yourself, Your Computer and, Your Identity
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #17 on: September 11, 2004, 11:04:38 PM »
Sasha
I agree with you. Just made one of those for a friend of mine who had to do a re-install of Win XP. After this clean install, there was only one minor update from MS. It even cured his problem of not having Avast! recognized by the security center.
Free avast! Security Seminar: http://bit.ly/2N1eaR2  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v20H2 64bit, 24 Gig Ram, 1TB SSD, AvastOmni 20.7.xxx, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Cochise

  • Guest
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #18 on: September 12, 2004, 01:41:32 PM »
TG, there is no excuses for this lack of detection...
Can you send cool.exe and ntsysmgr.exe files for Alwil to analysis (virus at avast.com)?

Anyway, we can discuss your avast configurations...
For instance, you said, right clicking the files and scanning them. Well, you should know the differences between the Home version and the Quick scanner of avast, for instance. It's not an excuse. Just differences between programms.  :-\

       Technical, can you clarify? What do you mean when you say differences between home version and quick scanner of Avast. Are you saying that the scan method used was incorrect?

       Usually after downloading a file, I right click on it and have Avast scan it using the explorer extension. I also have Avast scan all created and modified files. Is this the incorrect procedure of checking a file?

Offline Lisandro

  • Avast team
  • Certainly Bot
  • *
  • Posts: 67255
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #19 on: September 12, 2004, 03:03:21 PM »
Cochise, I can figure out two differences:

1. Sensibility
2. Report hability


Both programs react different, ashQuick.exe, for instance, cannot be configurated to scan other packers than ZIP and ARJ. Home version, on-demmand, could.
ashQuick.exe does not report 'password' protected files, you can try...

I think it's not a matter of correct or incorrect scanning method, but what are you scanning, in which extension (deep), what will be reported to you and so on.  ;)
The best things in life are free.

Offline RejZoR

  • Polymorphic Sheep
  • Serious Graphoman
  • *****
  • Posts: 9359
  • We are supersheep, resistance is futile!
    • RejZoR's Flock of Sheep
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #20 on: September 12, 2004, 03:17:23 PM »
Well actually its not like that. My avast! Home Edition scans inside all archive types not just ZIP and ARJ. And its not tweaked in any way,its on default settings. It can even clean infected file from the archive.

ashQuick scans all files without virus targeting,content recognition and all archive types. Its not limited in any way even if its a free edition. Pro uses the same settings by default for Explorer Extension.
Visit my webpage Angry Sheep Blog

Offline Lisandro

  • Avast team
  • Certainly Bot
  • *
  • Posts: 67255
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #21 on: September 12, 2004, 04:22:39 PM »
ashQuick scans all files without virus targeting, content recognition and all archive types. Its not limited in any way even if its a free edition. Pro uses the same settings by default for Explorer Extension.

I think not.  :P
I need a confirmation from Alwil.  :-\
The best things in life are free.

Offline RejZoR

  • Polymorphic Sheep
  • Serious Graphoman
  • *****
  • Posts: 9359
  • We are supersheep, resistance is futile!
    • RejZoR's Flock of Sheep
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #22 on: September 12, 2004, 05:24:52 PM »
I have tested with EICAR inside RAR. It was detected by ashQuick,belive me.
Visit my webpage Angry Sheep Blog

Offline bob3160

  • Avast √úberevangelist
  • Probably Bot
  • *****
  • Posts: 44958
  • 61 Years of Happiness
    • bob3160 Protecting Yourself, Your Computer and, Your Identity
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #23 on: September 12, 2004, 05:37:33 PM »
If i'm not mistaken, we've had a discussion about this once before. ???
Free avast! Security Seminar: http://bit.ly/2N1eaR2  -  Important: http://www.organdonor.gov/ -- My Web Site: http://bob3160.strikingly.com/ - Win 10 Pro v20H2 64bit, 24 Gig Ram, 1TB SSD, AvastOmni 20.7.xxx, How to Successfully Install Avast http://goo.gl/VLXdeRepair & Clean Install https://goo.gl/t7aJGq

Offline Datagg

  • Sr. Member
  • ****
  • Posts: 219
  • Perceive things that you cant see
    • Girlfriends Lingerie
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #24 on: September 12, 2004, 10:00:14 PM »
I have tested with EICAR inside RAR. It was detected by ashQuick,belive me.

Agreed........
X64
GA-K8N-SLI
AMD 64 3500+
Nvidia Nforce4
e-Geforce 6800GT - PCI-E 256M
Gig of PC3200 DDR2

S.Z.Craftec

  • Guest
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #25 on: September 12, 2004, 10:16:53 PM »
Same here...

Offline whocares

  • Super Poster
  • ***
  • Posts: 1698
  • I'm not a llama! :-)
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #26 on: September 12, 2004, 10:36:40 PM »
But if this agobot is so old, and a lot of AV programs catch it, why avast doesn't?

There are 4000+ variants of agobot and similar network worms, and dozens come up every day, because the sourceCode was published on the net, so any script-kiddy can make their own and spread it..

As to being hit after formatting (while/before updating):
- the average time of infection of an unprotected PC is below 20 minutes..
- you MUST have all the ServicePacks and patches ready and have them APPLIED before EVER connectiong to the inet (after a reformat)
- and/or have a PROPERLY configured Firewall in place BEFORE connecting..
- Users of XP have it exceptionally easy now, as they can just apply ServicePack2 OFFLINE  ;)

Offline lee20

  • Avast Evangelist
  • Super Poster
  • ***
  • Posts: 2326
  • The only true failure is when you give up
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #27 on: September 12, 2004, 11:21:36 PM »
Quote
the sourceCode was published on the net, so any script-kiddy can make their own and spread it

Surely there must be people who remove such content (scrips) from the net so that people can't use them?

--lee

"Anyone who has never made a mistake has never tried anything new."-Albert Einstein

Comodo Firewall, Avast 4.8, SpywareBlaster, Spybot + superantispyware, PeerGuardian and ALL software patched!

Offline atos

  • Newbie
  • *
  • Posts: 4
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #28 on: September 13, 2004, 01:10:07 AM »
I've already sent samples for them, one in September 8th and the other on the 9th, zipped. What happened to them? It's already 11/9 and no new updates happened.

Maybe a variant, polimorphism or whatever... I'm not a virus expert. Again, I'm not apologizing (I'm not from avast team  ;D), just telling you that could be a problem of configuration, the user must know how the programm (and its parts) works, etc.
Well, it's not so bad... Try any other antivirus company. It's summer holidays now. But, sorry, I feel your pain and don't want to give an answer for all your needs... It's a pity what happened. What can we do now?
I forgive, I only wanted to help the AVAST and to alert on this worm that he is so destructive, since I indicate it for all my friends. I do not want that they work in the holiday.
Thank's :'(

Offline Lisandro

  • Avast team
  • Certainly Bot
  • *
  • Posts: 67255
Re:Sad too see Avast failed to detect Trojan 2 times!
« Reply #29 on: September 13, 2004, 04:18:03 AM »
Atos, never mind  8)
Thanks God we have whocares here  ;)
The best things in life are free.