{b87b84c6-5a9e-4078-81ca-64e40b81fcd9}.dll

Common Dots

Part of the Yontoo adware component, a web browser plugin that injects unwanted ads in the browser. The module {b87b84c6-5a9e-4078-81ca-64e40b81fcd9}.dll by Common Dots has been detected as adware by 1 anti-malware scanner with very strong indications that the file is a potential threat. It is also typically executed from the user's temporary directory.
Publisher:
Common Dots  (signed and verified)

Version:
1.0.5937.7727

MD5:
626af51aae69080de3c4c32df49e607a

SHA-1:
5289f2d99e50c485d37f7e91b773c19fcf045c57

SHA-256:
10d526db6765c553f39393f4056a58da3c47759af8ec3d9d5659e7a7dfe6d55f

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:
2/26/2020 9:54:10 PM UTC  (today)

Scan engine
Detection
Engine version

Reason Heuristics
PUP.Yontoo (M)
17.3.15.21

File size:
566.7 KB (580,320 bytes)

Product version:
1.0.5937.7727

File type:
Dynamic link library (Win32 DLL)

Language:
English (United States)

Common path:
C:\users\{user}\appdata\local\temp\{b87b84c6-5a9e-4078-81ca-64e40b81fcd9}.dll

Digital Signature
Signed by:

Authority:
VeriSign, Inc.

Valid from:
5/25/2015 8:00:00 PM

Valid to:
5/25/2016 7:59:59 PM

Subject:
CN=Common Dots, O=Common Dots, 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:
4EDD0BB696BB5C5B9AA1F0A302CC6028

File PE Metadata
Compilation timestamp:
4/3/2016 7:17:50 AM

OS version:
5.1

OS bitness:
Win32

Subsystem:
Windows GUI

Linker version:
14.0

Entry address:
0x101EFBF

Entry point:
55, 8B, EC, 83, 7D, 0C, 01, 75, 05, E8, 53, 05, 00, 00, FF, 75, 10, FF, 75, 0C, FF, 75, 08, E8, B1, FE, FF, FF, 83, C4, 0C, 5D, C2, 0C, 00, CC, CC, CC, 55, 8B, EC, 6A, 00, FF, 15, 6C, 01, 00, 12, FF, 75, 08, FF, 15, 68, 01, 00, 12, 68, 09, 04, 00, C0, FF, 15, 9C, 00, 00, 12, 50, FF, 15, 70, 01, 00, 12, 5D, C3, 55, 8B, EC, 81, EC, 24, 03, 00, 00, 6A, 17, E8, C7, A3, 02, 00, 85, C0, 74, 05, 6A, 02, 59, CD, 29, A3, 00, 7C, 02, 13, 89, 0D, FC, 7B, 02, 13, 89, 15, F8, 7B, 02, 13, 89, 1D, F4, 7B, 02, 13, 89, 35...
 
[+]

Developed / compiled with:
Microsoft Visual C++

Code size:
310 KB (317,440 bytes)

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