TSPY_TZEEBOT.AB
TrojanSpy:MSIL/Tzeebot (Microsoft); Trojan-Cleaver (McAfee); Backdoor.Setoba (Symantec); Backdoor.MSIL.Agent.omo (Kaspersky); Trojan.Win32.Generic!BT (Sunbelt); Trojan horse PSW.MSIL.AARC (AVG)
Windows
![](/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
1,196,544 bytes
EXE
No
10 Jan 2015
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_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
COM__System_Extentions
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
COM__System_Extentions
EventMessageFile = "%Windows%\Microsoft.NET\Framework\v2.0.50727\EventLogMessages.dll"
It modifies the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application
Sources = "{random characters}"
(Note: The default value data of the said registry entry is {random values}.)
This report is generated via an automated analysis system.
SOLUTION
9.700
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_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application
- COM__System_Extentions
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_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\COM__System_Extentions
- EventMessageFile = "%Windows%\Microsoft.NET\Framework\v2.0.50727\EventLogMessages.dll"
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\SYSTEM\ControlSet001\Services\Eventlog\Application
- From: Sources = "{random characters}"
To: Sources = ""{random values}""
- From: Sources = "{random characters}"
Step 5
Scan your computer with your Trend Micro product to delete files detected as TSPY_TZEEBOT.AB. 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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