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updater.bak

Razor Web

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file updater.bak by Razor Web has been detected as adware by 17 anti-malware scanners. It will plug into the web browser and display context-based advertisements by overwriting existing ads or by inserting new ones on various web pages.
Publisher:
Razor Web  (signed and verified)

Version:
1.0.5626.1295

MD5:
4f734dea81ae15c1f4e64158e5593ccb

SHA-1:
13eaa91836c298e5137ee4c9d847eb4011b810f2

SHA-256:
cda9142c186d834637073365429f18b5522134a8713cd7c08078147b79dc813d

Scanner detections:
17 / 68

Status:
Adware

Explanation:
Injects advertising in the web browser in various formats.

Analysis date:
4/25/2024 5:06:52 PM UTC  (today)

Scan engine
Detection
Engine version

Lavasoft Ad-Aware
Adware.BrowseFox.DB
5575765

AhnLab V3 Security
PUP/Win32.BrowseFox
2015.05.29

Avira AntiVirus
ADWARE/BrowseFox.Gen
8.3.1.6

Bitdefender
Adware.BrowseFox.DB
1.0.20.740

Clam AntiVirus
Win.Adware.Jatif
0.98/20518

Emsisoft Anti-Malware
Adware.BrowseFox.DB
10.0.0.5366

ESET NOD32
Win32/BrowseFox.AU potentially unwanted application
7.0.302.0

F-Secure
Adware.BrowseFox.DB
5.14.151

G Data
Adware.BrowseFox.DB
15.5.25

Malwarebytes
PUP.Optional.RazorWeb.A
v2015.05.28.05

McAfee
BrowseFox.h
5600.6751

MicroWorld eScan
Adware.BrowseFox.DB
16.0.0.444

NANO AntiVirus
Trojan.Win32.Yontoo.drblfj
0.30.24.1636

nProtect
Adware.BrowseFox.DB
15.05.28.01

Panda Antivirus
Trj/Genetic.gen
15.05.28.05

Reason Heuristics
Threat.Win.Reputation.IMP
15.5.28.17

Zillya! Antivirus
Backdoor.PePatch.Win32.71155
2.0.0.2193

File size:
467.8 KB (478,984 bytes)

Product version:
1.0.5626.1295

Language:
English (United States)

Common path:
C:\Program Files\common files\4776dc07-f30f-4d0b-87a6-e2d583c890d4\updater.bak

Digital Signature
Signed by:
Razor Web

Authority:
VeriSign, Inc.

Valid from:
3/25/2015 4:30:00 AM

Valid to:
3/25/2016 4:29:59 AM

Subject:
CN=Razor Web, O=Razor Web, L=San Diego, S=California, C=US

Issuer:
CN=VeriSign Class 3 Code Signing 2010 CA, OU=Terms of use at https://www.verisign.com/rpa (c)10, OU=VeriSign Trust Network, O="VeriSign, Inc.", C=US

Serial number:
1607E89C1B423660BDDDD63E03C260E2

File PE Metadata
Compilation timestamp:
5/28/2015 12:13:17 PM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
12.0

CTPH (ssdeep):
12288:EA4lrw75S41rf8AeZkl9jEjEuAdnZbAv8d5xYxjfJq:xOw1Sm8kzAj2JZzYxg

Entry address:
0x245E2

Entry point:
E8, BE, E7, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 56, 8B, 75, 08, 83, 3C, F5, 30, D5, 46, 00, 00, 75, 13, 56, E8, 71, 00, 00, 00, 59, 85, C0, 75, 08, 6A, 11, E8, B8, 47, 00, 00, 59, FF, 34, F5, 30, D5, 46, 00, FF, 15, 48, 41, 45, 00, 5E, 5D, C3, 56, 57, BE, 30, D5, 46, 00, 8B, FE, 53, 8B, 1F, 85, DB, 74, 17, 83, 7F, 04, 01, 74, 11, 53, FF, 15, 80, 41, 45, 00, 53, E8, B0, A6, FF, FF, 83, 27, 00, 59, 83, C7, 08, 81, FF, 50, D6, 46, 00, 7C, D8, 5B, 83, 3E, 00, 74, 0E, 83, 7E, 04, 01, 75, 08, FF, 36, FF, 15...
 
[+]

Entropy:
6.5719

Code size:
330.5 KB (338,432 bytes)

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