BKDR_MAKADOCS.JH
Backdoor:Win32/Mizzmo.A (Microsoft); BackDoor-ERL (McAfee); Downloader (Symantec); Backdoor.Win32.Webdor.ce (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows XP, Windows Server 2003
![](/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
141,312 bytes
EXE
No
27 Nov 2012
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\Microsoft\
NetGetXP\Options
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\servebbs.net\
gtupdate
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\podzone.net\
updateus
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range22
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\podzone.net\
updatebr
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\knowsitall.info\
mainbr
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range25
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0030 = "SIE="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0026 = "RQ=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0027 = "QMk="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0028 = "QMk="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0017 = "QQ=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0000 = "RZhB41uSfCY="
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\servebbs.net\
gtupdate
http = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\servebbs.net\
gtupdate
https = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\podzone.net\
updateus
http = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\podzone.net\
updateus
https = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range22
:Range = "gtupdate.servebbs.net"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range22
http = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range22
https = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\podzone.net\
updatebr
http = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\podzone.net\
updatebr
https = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\knowsitall.info\
mainbr
http = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Domains\knowsitall.info\
mainbr
https = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range25
:Range = "72.83.229.11:443"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range25
http = "2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
ZoneMap\Ranges\Range25
https = "2"
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0001 = "Rstc7graKCIO2pD2"
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0002 = "BIkWt02Rb2MZhM6jgSqeJMtnqTs="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0003 = "Fo0Hpl2VbnUZh8S1jSCSI5Ynoiog"
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0004 = "BIkWt02ReGIZhM6jgSqeJMtnqTs="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0005 = "HJgbuFuGNHtZm9a0kjGRLYknpSEycQ=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0006 = "Rstc7graKCIO2pD2wXHEcg=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0007 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0008 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0009 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0010 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0011 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0012 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0013 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0014 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0015 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0016 = "N6s3kw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0018 = "PJARpFaHdXZD1PaulSGfNpYplB90TjvIZzh+f+boOzGaCOUEzh/XFcFZ4UEzxY9WUWW/UlkqbKs3rC/Blg=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0019 = "Rw=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0021 = "JrA+lHymTj10w5CGvQbC"
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0020 = "JpAetFyGbg=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0023 = "MsMukna3T11yipCbrCycI4B7uBMYUQrmTQ5zPdPTMD2G"
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0031 = "MsMugXC6Xl9gp/20gjaEJIg6/hM3cy2JZCVo"
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0032 = "QA=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0033 = "QQ=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0022 = "JrA+lHymTj10w5CGvQbC"
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0034 = "QA=="
HKEY_CURRENT_USER\Software\Microsoft\
NetGetXP\Options
0x0666 = "QQ=="
It modifies the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Internet Settings\
Zones\2
Flags = "43"
(Note: The default value data of the said registry entry is 47.)
This report is generated via an automated analysis system.
SOLUTION
9.300
Step 1
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Step 2
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\Microsoft\NetGetXP
- Options
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\servebbs.net
- gtupdate
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\podzone.net
- updateus
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges
- Range22
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\podzone.net
- updatebr
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\knowsitall.info
- mainbr
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges
- Range25
Step 3
Delete this registry value
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\Microsoft\NetGetXP\Options
- 0x0030 = "SIE="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0026 = "RQ=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0027 = "QMk="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0028 = "QMk="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0017 = "QQ=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0000 = "RZhB41uSfCY="
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\servebbs.net\gtupdate
- http = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\servebbs.net\gtupdate
- https = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\podzone.net\updateus
- http = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\podzone.net\updateus
- https = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges\Range22
- :Range = "gtupdate.servebbs.net"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges\Range22
- http = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges\Range22
- https = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\podzone.net\updatebr
- http = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\podzone.net\updatebr
- https = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\knowsitall.info\mainbr
- http = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Domains\knowsitall.info\mainbr
- https = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges\Range25
- :Range = "72.83.229.11:443"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges\Range25
- http = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\Ranges\Range25
- https = "2"
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0001 = "Rstc7graKCIO2pD2"
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0002 = "BIkWt02Rb2MZhM6jgSqeJMtnqTs="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0003 = "Fo0Hpl2VbnUZh8S1jSCSI5Ynoiog"
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0004 = "BIkWt02ReGIZhM6jgSqeJMtnqTs="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0005 = "HJgbuFuGNHtZm9a0kjGRLYknpSEycQ=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0006 = "Rstc7graKCIO2pD2wXHEcg=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0007 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0008 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0009 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0010 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0011 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0012 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0013 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0014 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0015 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0016 = "N6s3kw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0018 = "PJARpFaHdXZD1PaulSGfNpYplB90TjvIZzh+f+boOzGaCOUEzh/XFcFZ4UEzxY9WUWW/UlkqbKs3rC/Blg=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0019 = "Rw=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0021 = "JrA+lHymTj10w5CGvQbC"
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0020 = "JpAetFyGbg=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0023 = "MsMukna3T11yipCbrCycI4B7uBMYUQrmTQ5zPdPTMD2G"
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0031 = "MsMugXC6Xl9gp/20gjaEJIg6/hM3cy2JZCVo"
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0032 = "QA=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0033 = "QQ=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0022 = "JrA+lHymTj10w5CGvQbC"
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0034 = "QA=="
- In HKEY_CURRENT_USER\Software\Microsoft\NetGetXP\Options
- 0x0666 = "QQ=="
Step 4
Restore these modified registry values
Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\2
- From: Flags = "43"
To: Flags = ""47""
- From: Flags = "43"
Step 5
Scan your computer with your Trend Micro product to delete files detected as BKDR_MAKADOCS.JH. 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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