Should I block it?

60%
60% of PCs block this file from running.
Possible reason:
Performance resource utilization

VersionsAdditional versions

05b13 14.08%
68839 1.41%
11c3a 8.45%
52c18 12.68%
89238 1.41%
be4d9 2.82%
f85eb 1.41%
872f6 1.41%
8ac7e 9.86%
6caf3 4.23%
0ec38 7.04%
c7007 4.23%
81eac 1.41%
bd893 2.82%
a3224 1.41%
08e67 1.41%
99da6 4.23%
60981 7.04%
9b67a 4.23%
45f31 1.41%
199a8 1.41%
ce882 1.41%
36c55 1.41%
382f8 1.41%
418c5 1.41%
(Note, Perion Network Ltd. publishes each variation of this file with the same version, but the hashes are unique.)

Relationships

dmwu.exe

By Perion Network Ltd. (Signed)

Remove dmwu.exe
MD5:   382f8e1cf75dd68050e96b5150f6fc37
SHA1:   30b5f20e0ee9b95c8fe32f29d4d1d68b76fe0bb8

What is dmwu.exe?

dmwu.exe is the installation service for Web Optimizer, an ad-supported program. Web Optimizer by Perion Network Ltd. is a web browser extension and browser helper object (BHO) for Internet Explorer and Firefox (extension) and distributed through Perion Networks. The Web Optimizer extension includes a search bar which provides modified search redirection results and a search provider. Web Optimizer will attempt to change the default home page of the user's web browser as well.

Overview

dmwu.exe runs as a service under the name Updater Service (IBUpdaterService) with extensive SYSTEM privileges (full administrator access). It has been configured with a firewall exception which allows both inbound and outbound network communication without being blocked. The file is digitally signed by Perion Network Ltd. which was issued by the VeriSign certificate authority (CA).

DetailsDetails

File name:dmwu.exe
Typical file path:C:\Windows\System32\dmwu.exe
Size:1.68 MB (1,764,656 bytes)
Build date:10/28/2013 4:05 AM
Certificate
Issued to:Perion Network Ltd.
Authority (CA):VeriSign
Effective date:Tuesday, April 24, 2012
Expiration date:Friday, April 24, 2015
Digital DNA
PE subsystem:Windows GUI
File packed:No
Code language:Microsoft Visual C++ 10.0
.NET CLR:No
More details

BehaviorsBehaviors

Services
Runs under 'SYSTEM\CurrentControlSet\Services' by the Service Controller (services.exe)
  • 'IBUpdaterService' (Updater Service)
  • WebOptimizer
Windows firewall allowed programs
Exceptions allow programs to access to the Internet through an outbound connections
  • Firewall exception for 'C:\WINDOWS\system32\dmwu.exe'

ResourcesResource utilization

(Note: statistics below are averages based on a minimum sample size of 200 unique participants)
Averages
 
CPU
Total CPU:0.00025272%
0.028634%
Kernel CPU:0.00013319%
0.013761%
User CPU:0.00011953%
0.014873%
Kernel CPU time:159,641 ms/min
100,923,805ms/min
CPU cycles:4,169,236/sec
17,470,203/sec
Memory
Private memory:5.27 MB
21.59 MB
Private (maximum):13.05 MB
Private (minimum):10.13 MB
Non-paged memory:5.27 MB
21.59 MB
Virtual memory:87.14 MB
140.96 MB
Virtual memory (peak):91.29 MB
169.69 MB
Working set:12.15 MB
18.61 MB
Working set (peak):13.23 MB
37.95 MB
I/O
I/O read transfer:571 Bytes/sec
1.02 MB/min
I/O read operations:1/sec
343/min
I/O other transfer:25.81 KB/sec
448.09 KB/min
I/O other operations:1,205/sec
1,671/min
Resource allocations
Threads:6
12
Handles:66701
600

BehaviorsProcess properties

Integrety level:System
Platform:64-bit
Command line:C:\Windows\System32\dmwu.exe
Owner:SYSTEM
Windows Service
Service name:IBUpdaterService
Display name:Updater Service
Description:“Updater Service”
Type:Win32OwnProcess

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Ultimate 30.00%
Windows 7 Home Premium 24.29%
Microsoft Windows XP 17.14%
Windows 7 Professional 10.00%
Windows 8 5.71%
Windows Vista Home Premium 5.71%
Windows 8 Single Language 2.86%
Windows 8.1 Pro with Media Center 1.43%
Windows 8 Pro 1.43%
Windows 8 Release Preview 1.43%

Distribution by countryDistribution by country

United States installs about 34.29% of dmwu.exe.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Hewlett-Packard 28.81%
Acer 23.73%
Toshiba 16.95%
Sony 10.17%
Dell 10.17%
MSI 3.39%
ASUS 3.39%
GIGABYTE 3.39%
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