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appmgr.bak

Mountain Bike

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The file appmgr.bak by Mountain Bike has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat.
Publisher:
Mountain Bike  (signed and verified)

Version:
1.0.5578.15396

MD5:
89c144bd9bc5bb39c951c0f2e69f3903

SHA-1:
241809a323c3c3f1d213dff8eab7fd6eb795642c

SHA-256:
68f8e46ce3c26d9412343833243b271e4a40406b4c0899c13e4f7eb0033fc7ed

Scanner detections:
1 / 68

Status:
Adware

Explanation:
Belongs to the Sambreel/Yontoo progam that inserts various forms of advertising in the user's web browser, installed with minimal or no user consent.

Analysis date:
11/23/2024 10:05:58 AM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.5.8

File size:
445.2 KB (455,928 bytes)

Product version:
1.0.5578.15396

Language:
English (United States)

Common path:
C:\ProgramData\appmgr3.63.1412108\appmgr.bak

Digital Signature
Signed by:
Mountain Bike

Authority:
VeriSign, Inc.

Valid from:
1/10/2015 6:00:00 PM

Valid to:
1/11/2016 5:59:59 PM

Subject:
CN=Mountain Bike, O=Mountain Bike, 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:
25B97080EDAA57F7AD57607CEEA9C13E

File PE Metadata
Compilation timestamp:
4/10/2015 10:33:23 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
11.0

Entry address:
0x2185C

Entry point:
E8, 98, EB, 00, 00, E9, 7F, FE, FF, FF, 55, 8B, EC, 56, 8B, 75, 08, 83, 3C, F5, 20, 4E, 46, 00, 00, 75, 13, 56, E8, 71, 00, 00, 00, 59, 85, C0, 75, 08, 6A, 11, E8, C7, 5F, 00, 00, 59, FF, 34, F5, 20, 4E, 46, 00, FF, 15, 60, 11, 45, 00, 5E, 5D, C3, 56, 57, BE, 20, 4E, 46, 00, 8B, FE, 53, 8B, 1F, 85, DB, 74, 17, 83, 7F, 04, 01, 74, 11, 53, FF, 15, 54, 11, 45, 00, 53, E8, E5, C7, FF, FF, 83, 27, 00, 59, 83, C7, 08, 81, FF, 40, 4F, 46, 00, 7C, D8, 5B, 83, 3E, 00, 74, 0E, 83, 7E, 04, 01, 75, 08, FF, 36, FF, 15...
 
[+]

Entropy:
6.3807

Code size:
316.5 KB (324,096 bytes)

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