[nsp-sec] C&C at 91.212.41.252

Rob Thomas robt at cymru.com
Wed Jun 3 18:09:17 EDT 2009


Hey, Tim.

Regarding 91.212.41.252, it's been an active HTTP C&C.  The relevant DNS
RR is (at least):

      timestamp      |    dns_name    |      ip
--------------------- ---------------- ---------------
 2009-06-02 09:05:16 | upline-club.ru | 91.212.41.252

We see a few recent attacks.

      timestamp      |                          url
     |      ip       |    hostname    |   target_ip    |    target_host
    |                   cmd
---------------------
------------------------------------------------------- ---------------
---------------- ---------------- --------------------
------------------------------------------
 2009-06-02 08:01:03 |
http://upline-club.ru/dv2/counter.php?mytag=329862386 | 91.212.41.252 |
upline-club.ru | 83.222.23.166  | www.narcred.ru     |
####100####http://www.narcred.ru####
 2009-06-02 11:01:07 |
http://upline-club.ru/dv2/counter.php?mytag=329862386 | 91.212.41.252 |
upline-club.ru | 83.222.23.166  | www.narcred.ru     |
####100####http://www.narcred.ru####
 [ ... ]
 2009-06-03 11:01:04 |
http://upline-club.ru/dv2/counter.php?mytag=329862386 | 91.212.41.252 |
upline-club.ru | 90.156.154.192 | www.narcred.ru     |
####100####http://www.narcred.ru####

Regarding 91.212.41.0/24, there are a few other HTTP C&Cs in that network.

 2009-05-05 07:25:39 | 91.212.41.85  | 44050 | botnetcc   | category:
botweb url: http://91.212.41.85/backup/zv/s.php
 2009-05-18 12:53:09 | 91.212.41.249 | 44050 | botnetcc   | category:
botweb url: http://zctk.ru/liwe/cfg.bin
 2009-05-18 09:31:14 | 91.212.41.122 | 44050 | botnetcc   | category:
botweb url: http://rdcpglam.com/index.php
 2009-05-19 09:31:46 | 91.212.41.240 | 44050 | botnetcc   | category:
botweb url: http://www.currentlywork.com/site/isl.php
 2009-05-22 22:50:05 | 91.212.41.29  | 44050 | botnetcc   | category:
botweb url: http://91.212.41.29/log19.php

Malware distribution sites include:

 2009-05-04 05:11:29 | 91.212.41.250 | 44050 | malwareurl |
http://basdzsdas.com/poker/loader.exe
 2009-05-04 05:09:03 | 91.212.41.246 | 44050 | malwareurl |
http://keygroundc.com/download/1.exe
 2009-05-04 05:08:57 | 91.212.41.245 | 44050 | malwareurl |
http://online2168.com/123/bot.exe
 2009-05-04 05:11:33 | 91.212.41.85  | 44050 | malwareurl |
http://91.212.41.85/backup/zv/hook123.exe
 2009-05-11 09:52:54 | 91.212.41.116 | 44050 | malwareurl |
http://mougoalivee.com/dev2/money.exe
 2009-05-11 12:21:17 | 91.212.41.29  | 44050 | malwareurl |
http://91.212.41.29/l.php
 2009-05-21 19:51:53 | 91.212.41.113 | 44050 | malwareurl |
http://protection-centre.com/1/adv/142/index.html
 2009-05-22 09:21:16 | 91.212.41.114 | 44050 | malwareurl |
http://myplusantiviruspro.com/70072.exe

Plus a couple of phishing sites:

 2009-05-15 05:46:50 | 91.212.41.105 | 44050 | phishing   |
http://91.212.41.105/book/bbva/bbva.php
 2009-05-16 10:09:07 | 91.212.41.237 | 44050 | phishing   |
http://freak-vkontakte.org/photo34362276_127852389/

There's more if I go back further than 2009-05.

We see 268 DNS RRs pointed to hosts in 91.212.41.0/24.  Let me know if
you want the list.

We have 336 samples in our malware menagerie that point to IPs in
91.212.41.0/24.

It appears to be a mix of Microsoft IIS 6.0, Apache 2, and some nginx.

This netblock has scored poorly in our reputation analysis.

      timestamp      |    netblock    | avg_score | max_score | rank |
asn  | cc
--------------------- ---------------- ----------- ----------- ------
------- ----
 2009-04-26 06:30:02 | 91.212.41.0/24 |      4.67 |      6.00 |  340 |
29371 | RU
 2009-04-27 06:30:02 | 91.212.41.0/24 |      4.57 |      6.00 |  397 |
29371 | RU
 2009-04-28 06:30:02 | 91.212.41.0/24 |      4.14 |      6.00 |  628 |
29371 | RU
 2009-04-29 06:30:03 | 91.212.41.0/24 |      4.29 |      6.00 |  476 |
29371 | RU
 2009-04-30 06:30:03 | 91.212.41.0/24 |      4.43 |      6.00 |  396 |
29371 | RU
 2009-05-01 06:30:02 | 91.212.41.0/24 |      4.57 |      6.00 |  393 |
29371 | RU
 2009-05-02 06:30:02 | 91.212.41.0/24 |      4.86 |      6.00 |  330 |
29371 | RU
 2009-05-03 06:30:03 | 91.212.41.0/24 |      4.43 |      6.00 |  575 |
44050 | RU
 2009-05-04 06:30:03 | 91.212.41.0/24 |      4.43 |      6.00 |  557 |
44050 | RU
 2009-05-05 06:30:02 | 91.212.41.0/24 |      4.43 |      6.00 |  373 |
44050 | RU
 2009-05-06 06:30:03 | 91.212.41.0/24 |      4.43 |      6.00 |  339 |
44050 | RU
 2009-05-07 06:30:02 | 91.212.41.0/24 |      4.43 |      6.00 |  309 |
44050 | RU
 2009-05-08 06:30:02 | 91.212.41.0/24 |      4.29 |      6.00 |  312 |
44050 | RU
 2009-05-09 06:30:03 | 91.212.41.0/24 |      4.14 |      5.00 |  297 |
44050 | RU
 2009-05-10 06:30:02 | 91.212.41.0/24 |      4.00 |      5.00 |  256 |
44050 | RU
 2009-05-11 06:30:03 | 91.212.41.0/24 |      3.86 |      5.00 |  284 |
44050 | RU
 2009-05-12 06:30:03 | 91.212.41.0/24 |      3.86 |      5.00 |  338 |
44050 | RU
 2009-05-13 06:30:03 | 91.212.41.0/24 |      3.57 |      5.00 |  451 |
44050 | RU
 2009-05-14 06:30:03 | 91.212.41.0/24 |      3.29 |      5.00 |  674 |
44050 | RU
 2009-05-15 06:30:03 | 91.212.41.0/24 |      3.57 |      6.00 |  476 |
44050 | RU
 2009-05-16 06:30:03 | 91.212.41.0/24 |      3.43 |      6.00 |  563 |
44050 | RU
 2009-05-17 06:30:02 | 91.212.41.0/24 |      3.71 |      6.00 |  409 |
44050 | RU
 2009-05-18 06:30:02 | 91.212.41.0/24 |      3.29 |      6.00 |  694 |
44050 | RU
 2009-05-19 06:30:03 | 91.212.41.0/24 |      3.43 |      6.00 |  589 |
44050 | RU
 2009-05-20 06:30:02 | 91.212.41.0/24 |      3.57 |      6.00 |  563 |
44050 | RU
 2009-05-21 06:30:03 | 91.212.41.0/24 |      3.14 |      6.00 |  973 |
44050 | RU
 2009-05-22 06:30:03 | 91.212.41.0/24 |      2.86 |      4.00 | 1423 |
44050 | RU
 2009-05-23 06:30:02 | 91.212.41.0/24 |      3.00 |      5.00 | 1206 |
44050 | RU
 2009-05-24 06:30:02 | 91.212.41.0/24 |      3.00 |      5.00 | 1179 |
44050 | RU
 2009-05-25 06:30:03 | 91.212.41.0/24 |      3.71 |      5.00 |  527 |
44050 | RU
 2009-05-26 06:30:02 | 91.212.41.0/24 |      4.00 |      6.00 |  423 |
44050 | RU
 2009-05-27 06:30:03 | 91.212.41.0/24 |      4.29 |      6.00 |  304 |
44050 | RU
 2009-05-28 06:30:03 | 91.212.41.0/24 |      4.86 |      6.00 |  177 |
44050 | RU
 2009-05-29 06:30:02 | 91.212.41.0/24 |      4.29 |      6.00 |  326 |
44050 | RU
 2009-05-30 06:30:02 | 91.212.41.0/24 |      4.43 |      6.00 |  252 |
44050 | RU
 2009-05-31 06:30:02 | 91.212.41.0/24 |      4.71 |      6.00 |  181 |
44050 | RU
 2009-06-01 06:32:00 | 91.212.41.0/24 |      4.43 |      6.00 |  198 |
44050 | RU

Thanks,
Rob.
-- 
Rob Thomas
Team Cymru
https://www.team-cymru.org/
cmn_err(CEO_PANIC, "Out of coffee!");




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