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TSPY_DROPPR.EWO

August 12, 2014
 Modified by: Jaime Benigno Reyes
 ALIASES:

HackTool:Win32/Mailpassview (Microsoft)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 INFORMATION EXPOSURE:

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware

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:

455,680 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

30 Jul 2014

Payload:

Steals information

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.

Installation

This spyware drops the following files:

  • %User Temp%\{10 random alphanumeric characters}.INI - contains gathered information and deleted afterwards

(Note: %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)

It adds the following processes:

  • vbc.exe

It injects codes into the following process(es):

  • created vbc.exe

Information Theft

This spyware attempts to steal stored email credentials from the following:

  • Eudora
  • Gmail
  • Google Desktop
  • Group Mail Free
  • Hotmail/MSN
  • IncrediMail
  • MS Outlook
  • MS Outlook 2002/2003/2007
  • Netscape Mail
  • Outlook Express
  • Thunderbird
  • Windows Live Mail
  • Windows Mail
  • Yahoo! Mail

It attempts to get stored information such as user names, passwords, and hostnames from the following browsers:

  • Chrome
  • Firefox
  • Opera
  • Safari

NOTES:

This malware sends the gathered information to the following URL:

  • http://{BLOCKED}5.a78.org/index.php?action=add&username={user name}&password={password}&app={application}&pcname={computer name}&sitename={site name}

However, as of this writing, the said site is already inaccessible.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

10.953.00

FIRST VSAPI PATTERN DATE:

30 Jul 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

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 3

Scan your computer with your Trend Micro product to delete files detected as TSPY_DROPPR.EWO. 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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