TSPY_FIREFX.A

September 07, 2013
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • 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

File Size:

692,224 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

29 Aug 2013

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_CURRENT_USER\Software\VB and VBA Program Settings\
c:\logs

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\Timesx

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\Settimess

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\subb

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\mulk

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\htt

It adds the following registry entries:

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\Timesx
Timesx = "0"

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\Settimess
Settimess = "60"

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\subb
subb = "naya!"

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\htt
htt = "http://{BLOCKED}hai.com/bai.php"

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\Timesx
Timesx = "1"

HKEY_CURRENT_USER\Software\VB and VBA Program Settings\
c:\Timesx
Timesx = "2"

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.300

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

[ Learn More ]

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\VB and VBA Program Settings\c:\
    • logs
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\
    • Timesx
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\
    • Settimess
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\
    • subb
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\
    • mulk
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\
    • htt

Step 3

Delete this registry value

[ Learn More ]

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\VB and VBA Program Settings\c:\Timesx
    • Timesx = "0"
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\Settimess
    • Settimess = "60"
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\subb
    • subb = "naya!"
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\htt
    • htt = "http://{BLOCKED}hai.com/bai.php"
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\Timesx
    • Timesx = "1"
  • In HKEY_CURRENT_USER\Software\VB and VBA Program Settings\c:\Timesx
    • Timesx = "2"

Step 4

Scan your computer with your Trend Micro product to delete files detected as TSPY_FIREFX.A. 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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