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PE_SALITY.J

October 10, 2012
 ALIASES:

Worm:Win32/Sality.I (Microsoft); W32/Sality.k (McAfee); W32.Sality (Symantec); Virus.Win32.Sality.h (Kaspersky); Virus.Win32.Sality.i (v) (Sunbelt); Win32.Sality.L (FSecure)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

 OVERALL RISK RATING:
 REPORTED INFECTION:

  • Threat Type: File infector

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This file infector 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:

108,975 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

22 Sep 2012

Arrival Details

This file infector 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 file infector drops the following copies of itself into the affected system:

  • %System Root%\698a6f18ec45a99f99205eef6d54d515fd686a61_1767027a6f52f76a11eca3510bc8a~01

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

Other System Modifications

This file infector deletes the following files:

  • %System Root%\698a6f18ec45a99f99205eef6d54d515fd686a61_1767027a6f52f76a11eca3510bc8a~01
  • %Program Files%\ADOBE\READER 10.0\READER\READER_SL.DHR
  • %System Root%\FAL

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %Program Files% is the default Program Files folder, usually C:\Program Files.)

Dropping Routine

This file infector drops the following files:

  • %System%\SYSLIB32.DLL
  • %Program Files%\ADOBE\READER 10.0\READER\READER_SL.DHR
  • %Program Files%\COMMON FILES\ADOBE\ARM\1.0\ADOBEARM.MPM
  • %User Profile%\{AC76BA86-7AD7-1033-7B44-AA0000000001}\SETUP.QAM

(Note: %System% is the Windows system folder, which is usually C:\Windows\System on Windows 98 and ME, C:\WINNT\System32 on Windows NT and 2000, or C:\Windows\System32 on Windows XP and Server 2003.. %Program Files% is the default Program Files folder, usually C:\Program Files.. %User Profile% is the current user's profile folder, which is usually C:\Windows\Profiles\{user name} on Windows 98 and ME, C:\WINNT\Profiles\{user name} on Windows NT, and C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003.)

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.200

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Search and delete these files

[ Learn More ]
There may be some component files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result.
  • %System%\SYSLIB32.DLL
  • %Program Files%\ADOBE\READER 10.0\READER\READER_SL.DHR
  • %Program Files%\COMMON FILES\ADOBE\ARM\1.0\ADOBEARM.MPM
  • %User Profile%\{AC76BA86-7AD7-1033-7B44-AA0000000001}\SETUP.QAM

Step 3

Scan your computer with your Trend Micro product to clean files detected as PE_SALITY.J. 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.

Step 4

Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.

  • %System Root%\698a6f18ec45a99f99205eef6d54d515fd686a61_1767027a6f52f76a11eca3510bc8a~01
  • %Program Files%\ADOBE\READER 10.0\READER\READER_SL.DHR
  • %System Root%\FAL


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