BKDR_GLUPTEBA.YVE
Win32/Dynamer!ac(Dynamer); W32/Kryptik.DKSQ!tr(Fortinet);Win32/Glupteba.M(ESET)
Windows
![](/vinfo/imgFiles/legend.jpg)
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
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
It adds the following registry entries:
HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Global\nvUpdSrv
value = {installed version of malware which is "21150524"}
HKEY_CURRENT_USER\Software\NVIDIA Corporation\
Global\nvUpdSrv
GUID = {GUID}
Other Details
This backdoor connects to the following possibly malicious URL:
- {BLOCKED}.{BLOCKED}.118.22:48439
- {BLOCKED}.{BLOCKED}.177.4:18532
- {BLOCKED}.{BLOCKED}.67.170:53872
- {BLOCKED}.{BLOCKED}.70.56:38271
- {BLOCKED}.{BLOCKED}.37.210:49994
- {BLOCKED}.{BLOCKED}.209.137:37127
- {BLOCKED}.{BLOCKED}.64.85:19753
- {BLOCKED}.{BLOCKED.188.250:48439
- {BLOCKED}.{BLOCKED.138.226:31973
- {BLOCKED}.{BLOCKED.96.120:31885
- {BLOCKED}.{BLOCKED.104.139:18532
- {BLOCKED}.{BLOCKED.140.15:16577
- {BLOCKED}.{BLOCKED}.188.228:30708
- {BLOCKED}.{BLOCKED}.80.162:14066
- {BLOCKED}.{BLOCKED}.169.249:33376
- {BLOCKED}.{BLOCKED}.56.90:10703
- {BLOCKED}.{BLOCKED}.180.243:33879
- {BLOCKED}.{BLOCKED}.181.123:27571
- {BLOCKED}.{BLOCKED}.99.100:30124
- {BLOCKED}.{BLOCKED}.124.202:38109
- {BLOCKED}.{BLOCKED}.233.83:29283
- {BLOCKED}.{BLOCKED}.223.222:43118
- {BLOCKED}.{BLOCKED}.56.11:19141
- {BLOCKED}.{BLOCKED}.130.99:17325
- {BLOCKED}.{BLOCKED}.85.118:49126
- {BLOCKED}.{BLOCKED}.36.128:15206
- {BLOCKED}.{BLOCKED}.218.26:22237
- {BLOCKED}.{BLOCKED}.253.1:22357
- {BLOCKED}.{BLOCKED}.98.62:53127
- {BLOCKED}.{BLOCKED}.84.82:35971
- {BLOCKED}.{BLOCKED}.22.66:22740
- {BLOCKED}.{BLOCKED}.163.194:60098
- {BLOCKED}.{BLOCKED}.205.155:22887
- {BLOCKED}.{BLOCKED}.146.98:25127
- {BLOCKED}.{BLOCKED}.118.90:35535
- {BLOCKED}.{BLOCKED}.91.162:49891
- {BLOCKED}.{BLOCKED}.180.232:53872
- {BLOCKED}.{BLOCKED}.148.43:49126
- {BLOCKED}.{BLOCKED}.48.2:52112
- {BLOCKED}.{BLOCKED}.77.246:51841
- {BLOCKED}.{BLOCKED}.119.1:35535
- {BLOCKED}.{BLOCKED}.110.162:37174
- {BLOCKED}.{BLOCKED}.30.246:23962
- {BLOCKED}.{BLOCKED}.154.220:53818
- {BLOCKED}.{BLOCKED}.54.133:31189
- {BLOCKED}.{BLOCKED}.237.81:19413
- {BLOCKED}.{BLOCKED}.1.90:11982
- {BLOCKED}.{BLOCKED}.138.200:18150
- {BLOCKED}.{BLOCKED}.59.146:45297
- {BLOCKED}.{BLOCKED}.192.11:34907
- {BLOCKED}.{BLOCKED}.0.216:37288
- {BLOCKED}.{BLOCKED}.231.223:43992
- {BLOCKED}.{BLOCKED}.96.102:37174
- {BLOCKED}.{BLOCKED}.80.46:25127
- {BLOCKED}.{BLOCKED}.42.98:27042
- {BLOCKED}.{BLOCKED}.227.13:33879
- {BLOCKED}.{BLOCKED}.87.184:49205
- {BLOCKED}.{BLOCKED}.189.121:26195
- {BLOCKED}.{BLOCKED}.78.26:52112
- {BLOCKED}.{BLOCKED}.101.66:11410
- {BLOCKED}.{BLOCKED}.174.195:18387
- {BLOCKED}.{BLOCKED}.52.26:23097
- {BLOCKED}.{BLOCKED}.248.60:46612
- {BLOCKED}.{BLOCKED}.219.150:14950
- {BLOCKED}.{BLOCKED}.49.140:23516
- {BLOCKED}.{BLOCKED}.188.2:48105
- {BLOCKED}.{BLOCKED}.55.90:45297
- {BLOCKED}.{BLOCKED}.37.172:54091
- {BLOCKED}.{BLOCKED}.196.144:20480
- {BLOCKED}.{BLOCKED}.12.149:57136
- {BLOCKED}.{BLOCKED}.62.4:16660
- {BLOCKED}.{BLOCKED}.41.63:49996
- {BLOCKED}.{BLOCKED}.144.91:36139
- {BLOCKED}.{BLOCKED}.40.162:36846
- {BLOCKED}.{BLOCKED}.20.202:36102
- {BLOCKED}.{BLOCKED}.81.228:22516
- {BLOCKED}.{BLOCKED}.59.2:26195
- {BLOCKED}.{BLOCKED}.195.47:59899
- {BLOCKED}.{BLOCKED}.79.158:58186
- {BLOCKED}.{BLOCKED}.59.99:30577
- {BLOCKED}.{BLOCKED}.113.81:10934
- {BLOCKED}.{BLOCKED}.61.112:44032
- {BLOCKED}.{BLOCKED}.45.29:22237
- {BLOCKED}.{BLOCKED}.31.250:38102
- {BLOCKED}.{BLOCKED}.57.16:12320
- {BLOCKED}.{BLOCKED}.20.226:54127
- {BLOCKED}.{BLOCKED}.103.43:58207
- {BLOCKED}.{BLOCKED}.205.163:25549
- {BLOCKED}.{BLOCKED}.56.202:45297
- {BLOCKED}.{BLOCKED}.175.117:51447
- {BLOCKED}.{BLOCKED}.74.66:30478
- {BLOCKED}.{BLOCKED}.224.26:32136
- {BLOCKED}.{BLOCKED}.8.132:44052
- {BLOCKED}.{BLOCKED}.54.156:46956
- {BLOCKED}.{BLOCKED}.209.207:53127
- {BLOCKED}.{BLOCKED}.175.120:11754
- {BLOCKED}.{BLOCKED}.160.138:43782
- {BLOCKED}.{BLOCKED}.106.186:45297
- {BLOCKED}.{BLOCKED}.58.68:23480
- {BLOCKED}.{BLOCKED}.139.225:26545
- {BLOCKED}.{BLOCKED}.167.242:15745
- {BLOCKED}.{BLOCKED}.97.157:58186
SOLUTION
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
Restart in Safe Mode
Step 4
Delete this registry key
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\NVIDIA Corporation\Global
- nvUpdSrv
- nvUpdSrv
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_GLUPTEBA.YVE. 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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