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offer1.exe

PC Utilities Software Limited

Part of the Optimizer Pro / Driver 'PC optimizer' product lines marketed by Adsology and distributed through various bundled software (PPI and commission) channels. The application offer1.exe by PC Utilities Software Limited has been detected as a potentially unwanted program by 15 anti-malware scanners. Also know as BrowserDefender, this bundled service will prevent various web browser toolbars and extensions from running as well as block changes to the search page and provider. It is also typically executed from the user's temporary directory.
Publisher:
PC Utilities Software Limited  (signed and verified)

MD5:
f4305595b10c67fe5d19ea3826fc7695

SHA-1:
916618bd7d296e5115805bcf4b4293a41e01fa05

SHA-256:
3413a24400890b792a22cc991fca388cdd42b02d5620bd71a661321185c79037

Scanner detections:
15 / 68

Status:
Potentially unwanted

Explanation:
Installed with the Optimizer Pro software which is bundled by 3rd-party monetization programs.

Analysis date:
4/19/2024 7:25:29 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.Bprotector.B
1023

Agnitum Outpost
Trojan.BProtector
7.1.1

Avira AntiVirus
Adware/BProtector.B.1
7.11.144.160

AVG
MalSign.Generic
2015.0.3501

Bitdefender
Adware.Bprotector.B
1.0.20.540

Dr.Web
Trojan.PWS.Tibia.2591
9.0.1.0108

Emsisoft Anti-Malware
Adware.Bprotector
8.14.04.18.03

ESET NOD32
Win32/SpeedingUpMyPC
8.9704

F-Secure
Adware.Bprotector.B
11.2014-18-04_6

G Data
Adware.Bprotector
14.4.24

herdProtect (fuzzy)
variant of optimizerpro.exe (PUP)
2014.7.7.2

McAfee
Artemis!7A340105C476
5600.7157

MicroWorld eScan
Adware.Bprotector.B
15.0.0.324

nProtect
Adware.Bprotector.B
14.04.21.01

Reason Heuristics
PUP.PCUtilities.G
14.8.8.3

File size:
6.8 MB (7,136,776 bytes)

File type:
Executable application (Win32 EXE)

Common path:
C:\users\{user}\appdata\local\temp\{random}.tmp\offer1.exe

Digital Signature
Signed by:
PC Utilities Software Limited

Authority:
GoDaddy.com, Inc.

Valid from:
4/5/2013 11:29:35 AM

Valid to:
4/3/2015 7:23:14 AM

Subject:
CN=PC Utilities Software Limited, O=PC Utilities Software Limited, L=London, S=UK, C=GB

Issuer:
SERIALNUMBER=07969287, CN=Go Daddy Secure Certification Authority, OU=http://certificates.godaddy.com/repository, O="GoDaddy.com, Inc.", L=Scottsdale, S=Arizona, C=US

Serial number:
2B239BABC97410

File PE Metadata
Compilation timestamp:
4/11/2014 7:39:16 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
10.0

CTPH (ssdeep):
196608:Z4PUxzcXZ6EJHx99Fs7zIGEEn5I6eis0GY363b:Z4OAdZshEE66dGX

Entry address:
0x6869

Entry point:
E8, 67, 5F, 00, 00, E9, 89, FE, FF, FF, FF, 35, 84, E2, 41, 00, FF, 15, 58, 60, 41, 00, 85, C0, 74, 02, FF, D0, 6A, 19, E8, D9, 53, 00, 00, 6A, 01, 6A, 00, E8, FC, 2E, 00, 00, 83, C4, 0C, E9, C1, 2E, 00, 00, CC, CC, CC, 8B, 4C, 24, 04, F7, C1, 03, 00, 00, 00, 74, 24, 8A, 01, 83, C1, 01, 84, C0, 74, 4E, F7, C1, 03, 00, 00, 00, 75, EF, 05, 00, 00, 00, 00, 8D, A4, 24, 00, 00, 00, 00, 8D, A4, 24, 00, 00, 00, 00, 8B, 01, BA, FF, FE, FE, 7E, 03, D0, 83, F0, FF, 33, C2, 83, C1, 04, A9, 00, 01, 01, 81, 74, E8, 8B...
 
[+]

Entropy:
7.9877  (probably packed)

Code size:
81.5 KB (83,456 bytes)

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