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Mail Ranger 2.0 .exe Backdoor Fynloski Analysis

Updated 1 day ago
Checked by Malware Check
Mail Ranger 2.0 .exe

Technical Analysis

File Name Mail Ranger 2.0 .exe
File Type
PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Scanner Version 1.0.218.174
Database Version 2025-06-14 06:00:25 UTC
⚠

Backdoor.Win32.Fynloski.zv!n

Malware family: Fynloski

N/A
Detection Rate
357,376
File Size (bytes)
2025-06-14
Analysis Date

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File Identification

Hash Type Value Action
MD5
ac5f7dd0211af06ee21b6ff89f5f22ee
SHA1
050375a07344a3d9853255d3814165c13fbb123e
SHA256
26baac4f04bfdc52ff43633299d4798fa2b4e946ad2f3605c15a1b724bd4b92d
SHA512
884533121822c65fd22d35b563d0390094494bedcfd8b35adb5cea6a7c759b62e19ef868f61daea7480a647d5c61881e3f92a7bc6aa770b2906d6eee8ba9cf9f
ImpHash
a38ad86d74cafc45094a5085e33419e4

PE Analysis

Basic Information

▼
Icon
Hash: c7e2c3d7693afee67fbabcb941686592
Fuzzy: a7f96bf9d44011658ffb573291cf7d7c
dHash: 0919116fcbeb6b67
Image Base 0x00400000
Entry Point 0x004cd7f0
Compilation Time 2012-06-07 15:59:53
Checksum 0x00000000 (Actual: 0x0005a827)
OS Version 4.0
PEiD Signatures PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed
Digital Signature No valid SignedData structure was found.
Imports 20 libraries
Exports 0 functions
Resources 38 Resources
Sections 3 Sections

Version Information

▼
Comments Remote Service Application
CompanyName Microsoft Corp.
FileDescription Remote Service Application
FileVersion 1, 0, 0, 1
InternalName MSRSAAPP
LegalCopyright Copyright (C) 1999
OriginalFilename MSRSAAP.EXE
ProductName Remote Service Application
ProductVersion 4, 0, 0, 0
Translation 0x0409 0x04b0

PE Sections

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Name Virtual Address Virtual Size Raw Size Entropy Characteristics MD5
UPX0 0x00001000 585,728 bytes 0 bytes 0.00 (Normal) IMAGE_SCN_CNT_UNINITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE D41D8CD98F00B204E9800998ECF8427E
UPX1 0x00090000 253,952 bytes 252,416 bytes 7.93 (Packed/Encrypted) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_EXECUTE|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE 1473A6530D3F5839F4CB6D3AC93BD4A9
.rsrc 0x000ce000 106,496 bytes 103,936 bytes 4.63 (Normal) IMAGE_SCN_CNT_INITIALIZED_DATA|IMAGE_SCN_MEM_READ|IMAGE_SCN_MEM_WRITE C1BE2857ABDFEC68A3194BB55325EB98
Entropy Analysis Alert

1 section(s) with high entropy (≥7.5) detected - possible packing/encryption

Resource Analysis

▼
Total Resources: 38 (115,138 bytes)
Resource Type Count Total Size Percentage
RT_CURSOR 7 2,156 bytes
1.9%
RT_ICON 5 99,592 bytes
86.5%
RT_STRING 14 9,496 bytes
8.2%
RT_RCDATA 3 2,822 bytes
2.5%
RT_GROUP_CURSOR 7 140 bytes
0.1%
RT_GROUP_ICON 1 76 bytes
0.1%
RT_VERSION 1 856 bytes
0.7%

Certificate Chain Analysis

▼
No Digital Signatures

This file is not digitally signed.

Security Implications:
  • Cannot verify the publisher's identity
  • Increased security risk when running this file
  • May trigger security warnings on some systems

⚠ This file either lacks a digital signature or the certificate chain could not be verified
Exercise caution when executing unsigned files from unknown sources

Certificate Verification Status

No valid SignedData structure was found.

Recommendation: Verify the file source and ensure it comes from a trusted publisher.

Backdoor.Win32.Fynloski.zv!n Removal

Gridinsoft has the capability to identify and eliminate Backdoor.Win32.Fynloski.zv!n without requiring further user intervention.

Download Anti-Malware

Removal Instructions

Follow these steps to completely remove the threat from your system

  1. Start by downloading Gridinsoft Anti-Malware to your computer.
  2. Double-click on the gsam-en-install.exe file and follow the on-screen instructions to install the program.
  3. Once the installation of Gridinsoft Anti-Malware is complete, the program will open on the Scan screen.
  4. Click on the "Standard Scan" button to begin scanning your computer for threats.
  5. After the scanning process is finished, click on "Clean Now" to remove any detected threats.
  6. If prompted, restart your system to complete the removal process and ensure all threats are eliminated.
Important: Before You Start
Disconnect from the internet to prevent the malware from spreading or downloading additional threats. Run the scan in Safe Mode for better detection and removal of persistent threats.

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