Analysis by: RonJay Kristoffer Caragay
ALIASES:

VirTool:Win32/CeeInject (Microsoft);

 PLATFORM:

Windows

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size: 111,822 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 16 Jun 2015

Arrival Details

This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other System Modifications

This backdoor adds the following registry keys:

HKEY_CURRENT_USER\Software\NVIDIA Corporation

HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Global

HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Global\nvUpdSrv

HKEY_CURRENT_USER\Software\{random characters}

HKEY_CURRENT_USER\Software\{random characters}\
{malware filename}

HKEY_CURRENT_USER\Software\{random characters}\
{malware filename}\Recent File List

HKEY_CURRENT_USER\Software\{random characters}\
{malware filename}\Settings

It adds the following registry entries:

HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Global\nvUpdSrv
value = "21150605”

HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Global\nvUpdSrv
svalue = "{random value}”

HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Global\nvUpdSrv
GUID = "{GUID}”

Other Details

This backdoor connects to the following possibly malicious URL:

  • {BLOCKED}.{BLOCKED}.96.102:37174
  • {BLOCKED}.{BLOCKED}.96.120:31885
  • {BLOCKED}.{BLOCKED}.97.157:58186
  • {BLOCKED}.{BLOCKED}.200.153:17513
  • {BLOCKED}.{BLOCKED}.52.26:23097
  • {BLOCKED}.{BLOCKED}.149.204:39836
  • {BLOCKED}.{BLOCKED}.163.194:60098
  • {BLOCKED}.{BLOCKED}.223.11:38107
  • {BLOCKED}.{BLOCKED}.253.1:22357
  • {BLOCKED}.{BLOCKED}.1.99:27501
  • {BLOCKED}.{BLOCKED}.97.176:12448
  • {BLOCKED}.{BLOCKED}.36.128:15206
  • {BLOCKED}.{BLOCKED}.113.145:15871
  • {BLOCKED}.{BLOCKED}.22.66:22740
  • {BLOCKED}.{BLOCKED}.31.250:38102
  • {BLOCKED}.{BLOCKED}.42.98:27042
  • {BLOCKED}.{BLOCKED}.55.90:45297
  • {BLOCKED}.{BLOCKED}.56.202:45297
  • {BLOCKED}.{BLOCKED}.59.146:45297
  • {BLOCKED}.{BLOCKED}.205.155:22887
  • {BLOCKED}.{BLOCKED}.205.163:25549
  • {BLOCKED}.{BLOCKED}.148.43:49126
  • {BLOCKED}.{BLOCKED}.237.81:19413
  • {BLOCKED}.{BLOCKED}.106.186:45297
  • {BLOCKED}.{BLOCKED}.124.202:38109
  • {BLOCKED}.{BLOCKED}.146.98:25127
  • {BLOCKED}.{BLOCKED}.167.242:15745
  • {BLOCKED}.{BLOCKED}.84.82:35971
  • {BLOCKED}.{BLOCKED}.90.234:11982
  • {BLOCKED}.{BLOCKED}.97.114:49891
  • {BLOCKED}.{BLOCKED}.216.108:51376
  • {BLOCKED}.{BLOCKED}.189.121:26195
  • {BLOCKED}.{BLOCKED}.177.4:18532
  • {BLOCKED}.{BLOCKED}.103.43:58207
  • {BLOCKED}.{BLOCKED}.89.52:16796
  • {BLOCKED}.{BLOCKED}.214.110:26338
  • {BLOCKED}.{BLOCKED}.59.2:26195
  • {BLOCKED}.{BLOCKED}.138.226:31973
  • {BLOCKED}.{BLOCKED}.66.66:45297
  • {BLOCKED}.{BLOCKED}.78.26:52112
  • {BLOCKED}.{BLOCKED}.58.68:23480
  • {BLOCKED}.{BLOCKED}.192.230:26666
  • {BLOCKED}.{BLOCKED}.215.209:15551
  • {BLOCKED}.{BLOCKED}.37.210:49994
  • {BLOCKED}.{BLOCKED}.168.90:39862
  • {BLOCKED}.{BLOCKED}.188.2:48105
  • {BLOCKED}.{BLOCKED}.40.160:45872
  • {BLOCKED}.{BLOCKED}.87.184:49205
  • {BLOCKED}.{BLOCKED}.153.118:27738
  • {BLOCKED}.{BLOCKED}.12.149:57136
  • {BLOCKED}.{BLOCKED}.80.46:25127
  • {BLOCKED}.{BLOCKED}.169.249:33376
  • {BLOCKED}.{BLOCKED}.175.117:51447
  • {BLOCKED}.{BLOCKED}.175.120:11754
  • {BLOCKED}.{BLOCKED}.113.81:10934
  • {BLOCKED}.{BLOCKED}.98.62:53127
  • {BLOCKED}.{BLOCKED}.171.130:13586
  • {BLOCKED}.{BLOCKED}.67.170:53872
  • {BLOCKED}.{BLOCKED}.77.28:27190
  • {BLOCKED}.{BLOCKED}.180.232:53872
  • {BLOCKED}.{BLOCKED}.180.243:33879
  • {BLOCKED}.{BLOCKED}.80.162:14066
  • {BLOCKED}.{BLOCKED}.28.66:21074
  • {BLOCKED}.{BLOCKED}.214.20:12772
  • {BLOCKED}.{BLOCKED}.154.220:53818
  • {BLOCKED}.{BLOCKED}.144.91:36139
  • {BLOCKED}.{BLOCKED}.169.2:48146
  • {BLOCKED}.{BLOCKED}.56.90:10703
  • {BLOCKED}.{BLOCKED}.223.12:49116
  • {BLOCKED}.{BLOCKED}.48.2:52112
  • {BLOCKED}.{BLOCKED}.107.132:19796
  • {BLOCKED}.{BLOCKED}.120.18:39394
  • {BLOCKED}.{BLOCKED}.233.180:29380
  • {BLOCKED}.{BLOCKED}.209.207:53127
  • {BLOCKED}.{BLOCKED}.209.137:37127
  • {BLOCKED}.{BLOCKED}.240.170:25338
  • {BLOCKED}.{BLOCKED}.231.223:43992
  • {BLOCKED}.{BLOCKED}.110.162:37174
  • {BLOCKED}.{BLOCKED}.85.118:49126
  • {BLOCKED}.{BLOCKED}.80.55:14343
  • {BLOCKED}.{BLOCKED}.118.22:48439
  • {BLOCKED}.{BLOCKED}.118.90:35535
  • {BLOCKED}.{BLOCKED}.241.7:37399
  • {BLOCKED}.{BLOCKED}.70.56:38271
  • {BLOCKED}.{BLOCKED}.20.226:54127
  • {BLOCKED}.{BLOCKED}.59.99:30577
  • {BLOCKED}.{BLOCKED}.2.212:28644
  • {BLOCKED}.{BLOCKED}.218.26:22237
  • {BLOCKED}.{BLOCKED}.227.13:33879
  • {BLOCKED}.{BLOCKED}.119.1:35535
  • {BLOCKED}.{BLOCKED}.138.200:18150
  • {BLCOKED}.{BLOCKED}.77.246:51841
  • {BLCOKED}.{BLOCKED}.45.29:22237
  • {BLCOKED}.{BLOCKED}.64.85:19753
  • {BLOCKED}.{BLOCKED}.20.202:36102
  • {BLOCKED}.{BLOCKED}.242.226:34290
  • {BLOCKED}.{BLOCKED}.188.250:48439
  • {BLOCKED}.{BLOCKED}.195.47:59899
  • {BLOCKED}.{BLOCKED}.41.63:49996
  • {BLOCKED}.{BLOCKED}.208.18:16493
  • {BLOCKED}.{BLOCKED}.37.172:54091
  • {BLOCKED}.{BLOCKED}.133.248:46856

  SOLUTION

Minimum Scan Engine: 9.750

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Delete this registry key

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

 
  • In HKEY_CURRENT_USER\Software\{random characters}
    • {malware filename}
  • In HKEY_CURRENT_USER\Software
    • NVIDIA Corporation

Step 4

Scan your computer with your Trend Micro product to delete files detected as BKDR_GLUPTEBA.AEN. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


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