BKDR_NAPOLAR.GTE
W32/Napolar.AGB!tr.bdr(Fortinet), Backdoor.Win32.Napolar.agb(Kaspersky),
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: Backdoor
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
However, as of this writing, the said sites are inaccessible.
TECHNICAL DETAILS
194,560 bytes
EXE
Yes
23 Jun 2014
Arrival Details
This backdoor arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Autostart Technique
This backdoor drops the following file(s) in the Windows User Startup folder to enable its automatic execution at every system startup:
- %User Startup%\lsass.exe
(Note: %User Startup% is the current user's Startup folder, which is usually C:\Windows\Profiles\{user name}\Start Menu\Programs\Startup on Windows 98 and ME, C:\WINNT\Profiles\{user name}\Start Menu\Programs\Startup on Windows NT, and C:\Documents and Settings\{User name}\Start Menu\Programs\Startup.)
Other Details
This backdoor connects to the following possibly malicious URL:
- http://{BLOCKED}no.{BLOCKED}ob.us/dino1/panel
However, as of this writing, the said sites are inaccessible.
SOLUTION
9.700
10.882.03
24 Jun 2014
10.883.00
24 Jun 2014
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
Scan your computer with your Trend Micro product and note files detected as BKDR_NAPOLAR.GTE
Step 3
Restart in Safe Mode
Step 4
Search and delete the file detected as BKDR_NAPOLAR.GTE
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_NAPOLAR.GTE. 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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