TROJ_REDYMS.CP
Trojan.Win32.Redyms.qbs (Kaspersky), Redyms-FCUB!63924043B72A (NAI)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
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.
It deletes the initially executed copy of itself.
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:
- %AppDataLocal%\{random folder name}\ceafabcbeabeaad.exe
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local on Windows Vista and 7.)
It creates the following folders:
- %AppDataLocal%\{random folder name}
(Note: %AppDataLocal% is the Local Application Data folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local on Windows Vista and 7.)
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Policies\
Explorer\Run
ceafabcbeabeaad = "%AppDataLocal%\{random folder name}\ceafabcbeabeaad.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
Adobe CSS5.1 Manager = "%AppDataLocal%\{random folder name}\ceafabcbeabeaad.exe"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\RunOnce
Adobe CSS5.1 Manager = "%AppDataLocal%\{random folder name}\ceafabcbeabeaad.exe"
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\Adobe
HKEY_CURRENT_USER\Software\Adobe\
CSXS.2.5
HKEY_CURRENT_USER\Software\Microsoft\
CurrentVersion\Policies\Explorer\
Run
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Adobe\
CSXS.2.5
bProofingSpace = "{hex values}"
Dropping Routine
This Trojan drops the following files:
- %Windows%\Task\{random}.job
(Note: %Windows% is the Windows folder, which is usually C:\Windows.)
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}ukuuyssk.org
It deletes the initially executed copy of itself