Friday, January 27, 2006

According to Security Focus news Nyxem.e/Blackmal.e/MyWife.e is spreading rapidly in India,Turkey,Italy ...
Read more about the news article here

This came up shortly after I posted my views/rough analysis of the worm.

Update: F-Secure has released a disinfection utility called F-Force for Nyxem.e

Regards
Nyxem.e is a mass mailing worm, it sends the attachment, with filetype bhx(which actually is the worm). I was not surprised when a institute where I had studied was infected with the worm. (No anti-virus installed either) So the possibility of infection was very high. I won't be wondering if the worm spread to all their students' email and inturn their friends / contacts.

Some behavioral details

1)Coded in Microsoft Visual Basic, it uses remote shares to spread itself
2)Nasty payload: Deletes the file of the following filetype *.doc/*.xls/*.mdb/*.mde/*.ppt/*.pps/*.zip/*.rar/*.pdf/*.psd/*.dmp
3)It poses to be a winzip file (which is more threatening)
4)It escapes from anti-virus vendors as it's kinda mydoom's design by avoiding sending the emails to their domains.
5)It also kills the following services(anti-viruses)
SYMANTEC/SCAN/KASPERSKY/VIRUS/MCAFEE/TREND MICRO/NORTON/REMOVAL/FIX

So even if the institute I mentioned had a Anti-virus, it might have only one of the leading av's and this makes the installation of anti-viruses futile.

I was particularly interested in this one because it's payload was to delete almost all essential files on the harddisk on Feb 3 or 3rd day of any month.This is aided by the running of a exe called update.exe is loaded into memory.(update.exe is created by the worm)I haven't fully analysed the worm.

I have just outlined some of the key features which make it deadly.

Regards

Tuesday, January 24, 2006

Yo... I have been playing with some old samples recently.. Iam also linked with a upcoming security firm in my city,where I might secure a job for myself for good ;-)

That's all I have in stock for now :-)

Regards

Monday, January 09, 2006

My primary 40gig hdd crashed and it was declared unusable by me as soon as I got a couple of Data Read/Write errors.(also accompanying these two was the CRC Error for the hdd). I still wanted to try to make it re-usable instead of throwing it ... Hoping to make something happen I installed Win2000 SP4 and a Vmware image. As soon as I started working ... I again get these bsod(errors as mentioned above). I finally format it again fully and I won't throw it ... but I will have it as a souvenir/my memoir or whatever I feel like calling it ... Iam planning to buy a 10-20gig hdd to get back the setup for working on vulns/malware.

Pray for my new hdd's health...

Regards