TSPY_INFOSTEAL.RQC
Windows
![](/vinfo/imgFiles/legend.jpg)
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
1,203,381 bytes
EXE
No
01 Nov 2016
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 copies of itself into the affected system:
- %Temporary Internet Files%\o987654tr5678oo\kuiytui8o9p98ue.exe
(Note: %Temporary Internet Files% is the Temporary Internet Files folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temporary Internet Files on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Microsoft\Windows\Temporary Internet Files on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), and Windows Server 2008; C:\Users\{user name}\AppData\Local\Microsoft\Windows\INetCache on Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), and Windows Server 2012.)
It creates the following folders:
- %User Profile%\CryptnetUrlCache\MetaData
- %User Profile%\Microsoft\CryptnetUrlCache
- %User Profile%\CryptnetUrlCache\Content
- %Temporary Internet Files%\o987654tr5678oo
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\Microsoft\CLR Security Config
- %User Profile%\CLR Security Config\v2.0.50727.42
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Temporary Internet Files% is the Temporary Internet Files folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temporary Internet Files on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Microsoft\Windows\Temporary Internet Files on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), and Windows Server 2008; C:\Users\{user name}\AppData\Local\Microsoft\Windows\INetCache on Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), and Windows Server 2012.. %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Other System Modifications
This spyware deletes the following files:
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.1332.1053734
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.1332.1053750
- %User Profile%\v2.0.50727.42\security.config.cch.1332.1053890
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.1736.1084468
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.1736.1084484
- %User Profile%\v2.0.50727.42\security.config.cch.1736.1084687
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
Dropping Routine
This spyware drops the following files:
- %User Profile%\MetaData\60E31627FDA0A46932B0E5948949F2A5
- %User Profile%\Content\60E31627FDA0A46932B0E5948949F2A5
- %User Profile%\MetaData\8DFDF057024880D7A081AFBF6D26B92F
- %User Profile%\Content\8DFDF057024880D7A081AFBF6D26B92F
- %User Profile%\MetaData\62B5AF9BE9ADC1085C3C56EC07A82BF6
- %User Profile%\Content\62B5AF9BE9ADC1085C3C56EC07A82BF6
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new
- %User Profile%\v2.0.50727.42\security.config.cch.new
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Other Details
This spyware connects to the following possibly malicious URL:
- 23.5.245.163
This report is generated via an automated analysis system.
SOLUTION
9.8
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
Search and delete these components
- %User Profile%\MetaData\60E31627FDA0A46932B0E5948949F2A5
- %User Profile%\Content\60E31627FDA0A46932B0E5948949F2A5
- %User Profile%\MetaData\8DFDF057024880D7A081AFBF6D26B92F
- %User Profile%\Content\8DFDF057024880D7A081AFBF6D26B92F
- %User Profile%\MetaData\62B5AF9BE9ADC1085C3C56EC07A82BF6
- %User Profile%\Content\62B5AF9BE9ADC1085C3C56EC07A82BF6
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new
- %User Profile%\v2.0.50727.42\security.config.cch.new
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new
Step 3
Search and delete these folders
- %User Profile%\CryptnetUrlCache\MetaData
- %User Profile%\Microsoft\CryptnetUrlCache
- %User Profile%\CryptnetUrlCache\Content
- %Temporary Internet Files%\o987654tr5678oo
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\Microsoft\CLR Security Config
- %User Profile%\CLR Security Config\v2.0.50727.42
Step 4
Scan your computer with your Trend Micro product to delete files detected as TSPY_INFOSTEAL.RQC. 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 5
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.
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.1332.1053734
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.1332.1053750
- %User Profile%\v2.0.50727.42\security.config.cch.1332.1053890
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.1736.1084468
- %Windows%\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.1736.1084484
- %User Profile%\v2.0.50727.42\security.config.cch.1736.1084687
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