TROJ_DIALER.BB
Trojan:Win32/Adialer (Microsoft); Dialer-Generic.b. (McAfee); Dialer.CarpeDiem (Symantec); Trojan.Win32.Dialer.eg (Kaspersky); CarpeDiem (v) (Sunbelt); Trojan horse Dialer.ANO (AVG)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Trojan
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This Trojan 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 Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Trojan drops the following copies of itself into the affected system:
- %Program Files%\montorgueil\{malware file name}\{malware file name}
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
It creates the following folders:
- %Program Files%\Montorgueil
- %Program Files%\montorgueil\{malware file name}
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
Other System Modifications
This Trojan deletes the following files:
- %Program Files%\montorgueil\{malware file name}\{malware file name}.ico
- %Desktop%\{malware file name}-.exe
- %Program Files%\Montorgueil\14.03968
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).. %Desktop% is the current user's desktop, which is usually C:\Documents and Settings\{User Name}\Desktop on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\Desktop on Windows Vista and 7.)
It adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
SystemCertificates\TrustedPublisher\Certificates\
EC77857721E7DFB88A5881AA4BB23151D82DE208
HKEY_CURRENT_USER\Software\Montorgueil\
Kit
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\10000
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\10000\1
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\UserId
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
SystemCertificates\TrustedPublisher\Certificates\
EC77857721E7DFB88A5881AA4BB23151D82DE208
Blob = "{random values}"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit
CanLaunch = "N"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit
Num = "0"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit
Silent = "N"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit
Standard = "N"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\10000\1
Fournisseur = "0"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\10000\1
Ver = "1403968"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\10000\1
Produit = "0"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\10000\1
Tracking = "0"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\UserId
ID = "0030350"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\UserId
Pays = "1"
HKEY_CURRENT_USER\Software\Montorgueil\
Kit\UserId
Langue = "9"
Dropping Routine
This Trojan drops the following files:
- %Program Files%\montorgueil\{malware file name}\{malware file name}.ico.2
- %Program Files%\Montorgueil\14.03968.2
- %Program Files%\montorgueil\{malware file name}\{malware file name}.ico
- %Program Files%\Montorgueil\14.03968
(Note: %Program Files% is the default Program Files folder, usually C:\Program Files in Windows 2000, Server 2003, and XP (32-bit), Vista (32-bit), and 7 (32-bit), or C:\Program Files (x86) in Windows XP (64-bit), Vista (64-bit), and 7 (64-bit).)
This report is generated via an automated analysis system.
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
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\SystemCertificates\TrustedPublisher\Certificates
- EC77857721E7DFB88A5881AA4BB23151D82DE208
- In HKEY_CURRENT_USER\Software\Montorgueil
- Kit
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit
- 10000
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit0000
- 1
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit
- UserId
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\SystemCertificates\TrustedPublisher\Certificates\EC77857721E7DFB88A5881AA4BB23151D82DE208
- Blob = "{random values}"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit
- CanLaunch = "N"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit
- Num = "0"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit
- Silent = "N"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit
- Standard = "N"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit\10000\1
- Fournisseur = "0"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit\10000\1
- Ver = "1403968"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit\10000\1
- Produit = "0"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit\10000\1
- Tracking = "0"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit\UserId
- ID = "0030350"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit\UserId
- Pays = "1"
- In HKEY_CURRENT_USER\Software\Montorgueil\Kit\UserId
- Langue = "9"
Step 4
Search and delete these components
- %Program Files%\montorgueil\{malware file name}\{malware file name}.ico.2
- %Program Files%\Montorgueil\14.03968.2
- %Program Files%\montorgueil\{malware file name}\{malware file name}.ico
- %Program Files%\Montorgueil\14.03968
Step 5
Search and delete these folders
- %Program Files%\Montorgueil
- %Program Files%\montorgueil\{malware file name}
Step 6
Scan your computer with your Trend Micro product to delete files detected as TROJ_DIALER.BB. 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 7
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %Program Files%\montorgueil\{malware file name}\{malware file name}.ico
- %Desktop%\{malware file name}-.exe
- %Program Files%\Montorgueil\14.03968
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