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air5bf2.exe

Optimizer Pro

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 air5bf2.exe, “Fix, clean, optimize your PC!” by PC Utilities Software Limited has been detected as a potentially unwanted program by 8 anti-malware scanners. This is a setup program which is used to install the application. It is also typically executed from the user's temporary directory. The file has been seen being downloaded from dl.softservers.net.
Publisher:
PC Utilities Pro  (signed by PC Utilities Software Limited)

Product:
Optimizer Pro

Description:
Fix, clean, optimize your PC!

Version:
3.0.1.0

MD5:
d84b92824cee6bb09bf16c4a99d8b3ce

SHA-1:
21f8b8888acca3fe866d4cd68a070973e46e2fde

SHA-256:
4e980913711de86f3df3b56fd3289896d3a73fd8de57be473eb340be567ab7be

Scanner detections:
8 / 68

Status:
Potentially unwanted

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

Analysis date:
1/24/2025 5:21:12 PM UTC  (today)

Scan engine
Detection
Engine version

Comodo Security
UnclassifiedMalware
16837

ESET NOD32
Win32/SpeedingUpMyPC (variant)
7.8735

herdProtect (fuzzy)
variant of optimizerpro.exe (PUP)
2013.12.20.19

Malwarebytes
PUP.Optional.OptimizePro.A
v2013.12.16.04

McAfee
Artemis!D84B92824CEE
5600.7280

NANO AntiVirus
Riskware.Win32.Unwanted.ccmwkx
0.26.0.55366

Reason Heuristics
PUP.PCUtilities.H
14.8.8.3

Trend Micro House Call
TROJ_GEN.F47V0809
7.2.350

File size:
4.4 MB (4,620,392 bytes)

Product version:
3.0.1.0

Copyright:
PC Utilities Pro

Trademarks:
PC Utilities Pro

Original file name:
OptimizerPro

File type:
Executable application (Win32 EXE)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\air5bf2.exe

Digital Signature
Signed by:
PC Utilities Software Limited

Authority:
GoDaddy.com, Inc.

Valid from:
4/5/2013 2:29:35 PM

Valid to:
4/3/2015 10:23:14 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:
6/19/1992 6:22:17 PM

OS version:
4.0

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
2.25

CTPH (ssdeep):
98304:q85h0m6ZKJNLF1pxmY4XmRXPk8O9dSyHaWiEyRDXUBu:Fh0mNLFJD4XmRXs/94mVydXU8

Entry address:
0x13964

Entry point:
55, 8B, EC, 83, C4, F0, B8, D4, 38, 41, 00, E8, FC, 21, FF, FF, E8, 03, 04, FF, FF, 8D, 40, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00, 00...
 
[+]

Entropy:
7.9804

Developed / compiled with:
Microsoft Visual C++

Code size:
74.5 KB (76,288 bytes)

The file air5bf2.exe has been seen being distributed by the following URL.

http://dl.softservers.net/.../OptimizerPro.exe

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