Backdoor.Xtreme.A
Threat Scorecard
EnigmaSoft Threat Scorecard
EnigmaSoft Threat Scorecards are assessment reports for different malware threats which have been collected and analyzed by our research team. EnigmaSoft Threat Scorecards evaluate and rank threats using several metrics including real-world and potential risk factors, trends, frequency, prevalence, and persistence. EnigmaSoft Threat Scorecards are updated regularly based on our research data and metrics and are useful for a wide range of computer users, from end users seeking solutions to remove malware from their systems to security experts analyzing threats.
EnigmaSoft Threat Scorecards display a variety of useful information, including:
Popularity Rank: The ranking of a particular threat in EnigmaSoft’s Threat Database.
Severity Level: The determined severity level of an object, represented numerically, based on our risk modeling process and research, as explained in our Threat Assessment Criteria.
Infected Computers: The number of confirmed and suspected cases of a particular threat detected on infected computers as reported by SpyHunter.
See also Threat Assessment Criteria.
| Popularity Rank: | 13,894 |
| Threat Level: | 60 % (Medium) |
| Infected Computers: | 3,566 |
| First Seen: | May 2, 2017 |
| Last Seen: | April 14, 2026 |
| OS(es) Affected: | Windows |
Table of Contents
Analysis Report
General information
| Family Name: | Backdoor.Xtreme.A |
|---|---|
| Signature status: | No Signature |
Known Samples
Known Samples
This section lists other file samples believed to be associated with this family.|
MD5:
e9b7eea56eee10731158115f8bfb71e3
SHA1:
f9e1a002f8f53feb300b783fce7d676628e09f7f
SHA256:
887349B7182639235CE6084733B5449132B5CE8CC71D580AF1866FBDBC18C2A6
File Size:
115.71 KB, 115712 bytes
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MD5:
83ceb00d1cfaaffec3f654cac4f35001
SHA1:
cf2699ce9db33ff6632605f8acb8e45816d9f57d
SHA256:
62C8E848C53CF2032AD9D58CB8A435C9DF5A86BEDCA17970056A4B04C4917DE5
File Size:
115.71 KB, 115712 bytes
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MD5:
f993bf9672dc129b5c9a8636b189c583
SHA1:
697c0898354987866589829cb7acf4722b4b10ed
SHA256:
FC2D1DF1730A50C770B8DAECF6778031B187D46AE00A12E9440AA66EA17B71FF
File Size:
3.27 MB, 3270656 bytes
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Windows Portable Executable Attributes
- File doesn't have "Rich" header
- File doesn't have debug information
- File doesn't have exports table
- File doesn't have security information
- File has TLS information
- File is 32-bit executable
- File is either console or GUI application
- File is GUI application (IMAGE_SUBSYSTEM_WINDOWS_GUI)
- File is Native application (NOT .NET application)
- File is not packed
Show More
- IMAGE_FILE_DLL is not set inside PE header (Executable)
- IMAGE_FILE_EXECUTABLE_IMAGE is set inside PE header (Executable Image)
File Icons
File Icons
This section displays icon resources found within family samples. Malware often replicates icons commonly associated with legitimate software to mislead users into believing the malware is safe.
Windows PE Version Information
Windows PE Version Information
This section displays values and attributes that have been set in the Windows file version information data structure for samples within this family. To mislead users, malware actors often add fake version information mimicking legitimate software.| Name | Value |
|---|---|
| Comments | Microsoft Corporation |
| Company Name | Microsoft Corporation |
| File Description | Microsoft Skype |
| File Version |
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| Internal Name |
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| Legal Copyright | Microsoft Corporation |
| Legal Trademarks | Microsoft Corporation |
| Original Filename | skype.exe |
| Product Name | Microsoft Skype |
| Product Version |
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File Traits
- HighEntropy
- No Version Info
- ntdll
- WriteProcessMemory
- x86
Block Information
Block Information
During analysis, EnigmaSoft breaks file samples into logical blocks for classification and comparison with other samples. Blocks can be used to generate malware detection rules and to group file samples into families based on shared source code, functionality and other distinguishing attributes and characteristics. This section lists a summary of this block data, as well as its classification by EnigmaSoft. A visual representation of the block data is also displayed, where available.| Total Blocks: | 485 |
|---|---|
| Potentially Malicious Blocks: | 78 |
| Whitelisted Blocks: | 407 |
| Unknown Blocks: | 0 |
Visual Map
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0 - Probable Safe Block
? - Unknown Block
x - Potentially Malicious Block
? - Unknown Block
x - Potentially Malicious Block
Similar Families
Similar Families
This section lists other families that share similarities with this family, based on EnigmaSoft’s analysis. Many malware families are created from the same malware toolkits and use the same packing and encryption techniques but uniquely extend functionality. Similar families may also share source code, attributes, icons, subcomponents, compromised and/or invalid digital signatures, and network characteristics. Researchers leverage these similarities to rapidly and effectively triage file samples and extend malware detection rules.- Xtreme.A
Files Modified
Files Modified
This section lists files that were created, modified, moved and/or deleted by samples in this family. File system activity can provide valuable insight into how malware functions on the operating system.| File | Attributes |
|---|---|
| c:\users\user\appdata\local\temp\defender.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\local\temp\kmspico ativador permanente.exe | Generic Write,Read Attributes |
| c:\users\user\appdata\roaming\windows defender.exe | Generic Read,Write Data,Write Attributes,Write extended,Append data |
Registry Modifications
Registry Modifications
This section lists registry keys and values that were created, modified and/or deleted by samples in this family. Windows Registry activity can provide valuable insight into malware functionality. Additionally, malware often creates registry values to allow itself to automatically start and indefinitely persist after an initial infection has compromised the system.| Key::Value | Data | API Name |
|---|---|---|
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::proxybypass | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::intranetname | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::uncasintranet | RegNtPreCreateKey | |
| HKCU\software\microsoft\windows\currentversion\internet settings\zonemap::autodetect | RegNtPreCreateKey | |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | 鲎 ȁ 獖} | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc1c75 | RegNtPreCreateKey | |
| HKCU::di | ! | RegNtPreCreateKey |
| HKLM\software\microsoft\windows nt\currentversion\notifications\data::418a073aa3bc3475 | 鲏 ȁ 獖} | RegNtPreCreateKey |
| HKCU\environment::see_mask_nozonechecks | 1 | RegNtPreCreateKey |
Windows API Usage
Windows API Usage
This section lists Windows API calls that are used by the samples in this family. Windows API usage analysis is a valuable tool that can help identify malicious activity, such as keylogging, security privilege escalation, data encryption, data exfiltration, interference with antivirus software, and network request manipulation.| Category | API |
|---|---|
| Anti Debug |
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| Process Manipulation Evasion |
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| Process Shell Execute |
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| User Data Access |
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Shell Command Execution
Shell Command Execution
This section lists Windows shell commands that are run by the samples in this family. Windows Shell commands are often leveraged by malware for nefarious purposes and can be used to elevate security privileges, download and launch other malware, exploit vulnerabilities, collect and exfiltrate data, and hide malicious activity.
open C:\Users\Frcqfusq\AppData\Local\Temp\DEFENDER.EXE
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open C:\Users\Frcqfusq\AppData\Local\Temp\KMSPICO ATIVADOR PERMANENTE.EXE
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(NULL) C:\Users\Frcqfusq\AppData\Roaming\windows defender.exe
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