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
139,264 bytes
EXE
Yes
06 Aug 2013
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