TSPY_ZBOT.MRD
PWS:Win32/Zbot (Microsoft); Trojan-Spy.Win32.Zbot.ikry (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware 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
4,305,408 bytes
EXE
No
14 Apr 2013
Arrival Details
This spyware 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 spyware adds the following registry keys:
HKEY_CURRENT_USER\Software\Licenses
HKEY_CLASSES_ROOT\CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}\InprocServer32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}\ProgID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}\VersionIndependentProgID
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Licenses
{R7C0DB872A3F777C0} = "{random values}"
HKEY_CURRENT_USER\Software\Licenses
{K7C0DB872A3F777C0} = "{random values}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}\InprocServer32
ThreadingModel = "both"
It modifies the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
RFC1156Agent\CurrentVersion\Parameters
TrapPollTimeMilliSecs = "3a98"
(Note: The default value data of the said registry entry is 3a98.)
It deletes the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}\Version
This report is generated via an automated analysis system.
SOLUTION
9.300
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
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
- Licenses
- In HKEY_CLASSES_ROOT\CLSID
- {12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}
- InprocServer32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}
- ProgID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}
- VersionIndependentProgID
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\Licenses
- {R7C0DB872A3F777C0} = "{random values}"
- In HKEY_CURRENT_USER\Software\Licenses
- {K7C0DB872A3F777C0} = "{random values}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}\InprocServer32
- ThreadingModel = "both"
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_LOCAL_MACHINE\SOFTWARE\Microsoft\RFC1156Agent\CurrentVersion\Parameters
- From: TrapPollTimeMilliSecs = "3a98"
To: TrapPollTimeMilliSecs = ""3a98""
- From: TrapPollTimeMilliSecs = "3a98"
Step 5
Scan your computer with your Trend Micro product to delete files detected as TSPY_ZBOT.MRD. 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.
Step 6
Restore these deleted registry keys/values from backup
*Note: Only Microsoft-related keys/values will be restored. If the malware/grayware also deleted registry keys/values related to programs that are not from Microsoft, please reinstall those programs on your computer.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{12EDAC66-D2AF-36C4-C4CC-B2D562F22EA9}
- Version
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