ADW_TIERMON
Downloader.Win32.Montiera.b (Kaspersky); Montiera (fs) (Sunbelt)
Windows
![](/vinfo/imgFiles/legend.jpg)
Threat Type: Adware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This adware arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It requires its main component to successfully perform its intended routine.
TECHNICAL DETAILS
Varies
EXE, DLL
06 Oct 2014
Arrival Details
This adware 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 adware drops the following files:
- {adware path}\app.ini
Other System Modifications
This adware adds the following registry keys:
HKEY_CURRENT_USER\Software\Classes\
keepmysearch
HKEY_CURRENT_USER\Software\Classes\
keepmysearch\instl
HKEY_CURRENT_USER\Software\Classes\
keepmysearch\instl\data
Other Details
This adware requires its main component to successfully perform its intended routine.
NOTES:
It connects to the following possibly malicious URLs:
- http://{BLOCKED}g.{BLOCKED}rservices.com/cnfg/xtnupdt.srf?prdct=${MMPRDCT}&vrsn=${VRSN}&instlDate=16349&smplGrp=${SMPLGRP}
&afltId=${afltId}&hrdId=0f8472ddf6ed0cdfc1b47d359f29129f&apps=${APPS}&tlbrid=base&instlRef=${INSTLREF}&prms=${appPrms}&rd=
${APPRNDM}&tag=${TAG} - http://{BLOCKED}x.{BLOCKED}apis.com/ajax/libs/jquery/1.4.4/jquery.min.js
- http://{BLOCKED}g.{BLOCKED}rservices.com/cnfg/kmsmain2.srf?prdct=${MMPRDCT}&vrsn=${VRSN}&instlDate=16349&smplGrp=${SMPLGRP}&afltId=${afltId}&hrdId=0f8472ddf6ed0cdfc1b47d359f29129f&apps=${APPS}&tlbrid=base&instlRef=${INSTLREF}&prms=${appPrms}&rd=1&tag=${TAG}
- http://{BLOCKED}n.{BLOCKED}ra.com/{url path}
SOLUTION
9.700
1.550.39
23 Sep 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 and note files detected as ADW_TIERMON
Step 4
Restart in Safe Mode
Step 5
Delete this registry key
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\Classes
- keepmysearch
- keepmysearch
Step 6
Search and delete the file detected as ADW_TIERMON
Step 7
Search and delete this file
- {adware path}\app.ini
Step 8
Restart in normal mode and scan your computer with your Trend Micro product for files detected as ADW_TIERMON. 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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