TSPY_SKIMER.A

May 23, 2016
 Modified by: Jennifer Gumban
 ALIASES:

Trojan:Win32/Ligsetrac.D (Microsoft); PWS-BoldDie (McAfee); Trojan.Skimer (Symantec); Trojan.Win32.ExplorerHijack (Sunbelt); Trojan.Skimer.A (FSecure)

 PLATFORM:

Windows

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

78,848 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

09 Feb 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 deletes the following files:

  • %Windows%\lsass.exe
  • %Windows%\Prefetch

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)

Dropping Routine

This spyware drops the following files:

  • %Windows%\greenstone.bmp:redstone.bmp
  • %Windows%\greenstone.bmp:bluestone.bmp

(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)