Author Topic: Why avast! not detect brazilian trojan encrypted?  (Read 19776 times)

0 Members and 1 Guest are viewing this topic.

Offline Secondmineboy

  • Avast Evangelist
  • Massive Poster
  • ***
  • Posts: 3645
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #30 on: September 15, 2013, 05:02:00 PM »
That the scans are 4 days old doesn,t mean that Avast has caught up these.

Here you can see the update history: http://www.avast.com/de-de/virus-update-history

Some Exploits have been added today. ;)
Windows 10 1909, 4 GB DDR3 RAM, 500 GB 5400 RPM HDD, 1366 by 768 LCD Screen, Intel Core i3 5010U Dual Core, Intel HD Graphics 5500
HUAWEI P30 Pro. Android 10

Offline Secondmineboy

  • Avast Evangelist
  • Massive Poster
  • ***
  • Posts: 3645
Windows 10 1909, 4 GB DDR3 RAM, 500 GB 5400 RPM HDD, 1366 by 768 LCD Screen, Intel Core i3 5010U Dual Core, Intel HD Graphics 5500
HUAWEI P30 Pro. Android 10

true indian

  • Guest
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #32 on: September 15, 2013, 05:10:44 PM »
Well considering even the big player bitdefender misses it we are doing a great job here.Keep it up gang!  ;D

Offline Secondmineboy

  • Avast Evangelist
  • Massive Poster
  • ***
  • Posts: 3645
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #33 on: September 15, 2013, 05:13:45 PM »
Just to be fair i sent the files to the vendors which are not detecting this.
Windows 10 1909, 4 GB DDR3 RAM, 500 GB 5400 RPM HDD, 1366 by 768 LCD Screen, Intel Core i3 5010U Dual Core, Intel HD Graphics 5500
HUAWEI P30 Pro. Android 10

Henrique - RJ

  • Guest
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #34 on: September 15, 2013, 05:41:38 PM »
The problem the brazilian trojans ( crypted ) today is that avast! does not detect by the heuristic and to for sandbox analysis.

true indian

  • Guest
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #35 on: September 15, 2013, 05:46:41 PM »
The problem the brazilian trojans ( crypted ) today is that avast! does not detect by the heuristic and to for sandbox analysis.

Not true...sigs,sandbox,heuristics are not ultimate defense.URL Blocker,filerep and additional defenses like MBAM Pro are always needed.

Avast improved a LOT since v5 to v9 will bring in great stuff too.Guys,anyone tried to check if evo-gen or filerepmalware detects this while execution.Keep working to improve avast detection,never give up!  :)
« Last Edit: September 15, 2013, 05:51:32 PM by True Indian »

Offline Secondmineboy

  • Avast Evangelist
  • Massive Poster
  • ***
  • Posts: 3645
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #36 on: September 15, 2013, 05:52:17 PM »
You can send me the files via mail if you want, i will run them in a VM with Windows 7 Professional and Avast 2014 beta 2. ;)
Windows 10 1909, 4 GB DDR3 RAM, 500 GB 5400 RPM HDD, 1366 by 768 LCD Screen, Intel Core i3 5010U Dual Core, Intel HD Graphics 5500
HUAWEI P30 Pro. Android 10

true indian

  • Guest
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #37 on: September 15, 2013, 05:53:42 PM »
You can send me the files via mail if you want, i will run them in a VM with Windows 7 Professional and Avast 2014 beta 2. ;)

I really like your initiative to keep testing avast v9,thanks so much!!  ;D

Offline Secondmineboy

  • Avast Evangelist
  • Massive Poster
  • ***
  • Posts: 3645
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #38 on: September 15, 2013, 05:56:29 PM »
The only thing that canget into play is Gmail which will detect this as malware, but i also have a private address which i can give him.

And here is an DeepScreen detection as Screenshot.
Windows 10 1909, 4 GB DDR3 RAM, 500 GB 5400 RPM HDD, 1366 by 768 LCD Screen, Intel Core i3 5010U Dual Core, Intel HD Graphics 5500
HUAWEI P30 Pro. Android 10

true indian

  • Guest
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #39 on: September 15, 2013, 05:58:37 PM »
OK lets not go OT here,PMed you steven  ;D

Offline Secondmineboy

  • Avast Evangelist
  • Massive Poster
  • ***
  • Posts: 3645
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #40 on: September 15, 2013, 05:59:24 PM »
By the way i am using VMWarePlayer to create these virtual machines, but i will set up a VirtualBox VM soon.

But i have to install the GuestAdditions in a other way cause i cannot install them via the Menu for some odd reason.........
Windows 10 1909, 4 GB DDR3 RAM, 500 GB 5400 RPM HDD, 1366 by 768 LCD Screen, Intel Core i3 5010U Dual Core, Intel HD Graphics 5500
HUAWEI P30 Pro. Android 10

Offline Pondus

  • Probably Bot
  • ****
  • Posts: 37527
  • Not a avast user
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #41 on: September 15, 2013, 06:05:47 PM »
The only thing that canget into play is Gmail which will detect this as malware.......
not if the file is sendt in a password protected zip file......using a zip program that also encrypt the content, like 7zip of WinRAR. 




Henrique - RJ

  • Guest
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #42 on: September 15, 2013, 06:05:58 PM »
What is DeepScreen ?

true indian

  • Guest
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #43 on: September 15, 2013, 06:07:22 PM »
What is DeepScreen ?

Quote
New DeepScreen technology allows avast! to make more intelligent decisions about new/unknown files. DeepScreen is a successor of AutoSandbox, now upgraded with some additional new technologies such as dynamic binary translation and dyna-gen announced earlier.

http://forum.avast.com/index.php?topic=132502.0

Its in v9 beta: http://forum.avast.com/index.php?topic=134419.0

Offline Secondmineboy

  • Avast Evangelist
  • Massive Poster
  • ***
  • Posts: 3645
Re: Why avast! not detect brazilian trojan encrypted?
« Reply #44 on: September 15, 2013, 06:08:40 PM »
@Pondus: Gmail has already detected infected files in protected archives for me. I dont know why.
Windows 10 1909, 4 GB DDR3 RAM, 500 GB 5400 RPM HDD, 1366 by 768 LCD Screen, Intel Core i3 5010U Dual Core, Intel HD Graphics 5500
HUAWEI P30 Pro. Android 10