Win32/Spatet.C

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/Spatet.C infection?

In this post you will discover about the meaning of Win32/Spatet.C as well as its negative impact on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to require paying the ransom money by a sufferer.

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In the majority of the situations, Win32/Spatet.C virus will advise its sufferers to launch funds transfer for the objective of counteracting the modifications that the Trojan infection has actually presented to the victim’s tool.

Win32/Spatet.C Summary

These modifications can be as follows:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • Injection (inter-process);
  • Injection with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • Detected script timer window indicative of sleep style evasion;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • A scripting utility was executed;
  • Code injection with CreateRemoteThread in a remote process;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Creates known SpyNet mutexes and/or registry changes.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the sufferer’s hard disk drive — so the victim can no more make use of the information;
  • Preventing routine accessibility to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
z.whorecord.xyz Trj/Ransom.AB
a.tomx.xyz Trj/Ransom.AB
ggib1.dyndns.org Trj/Ransom.AB

Win32/Spatet.C

The most typical channels through which Win32/Spatet.C Trojans are injected are:

  • By means of phishing emails;
  • As a repercussion of individual ending up on a source that organizes a malicious software;

As soon as the Trojan is successfully infused, it will either cipher the data on the target’s PC or avoid the tool from operating in a correct fashion – while additionally placing a ransom money note that discusses the requirement for the targets to impact the payment for the purpose of decrypting the papers or restoring the file system back to the preliminary problem. In a lot of circumstances, the ransom note will turn up when the client reboots the PC after the system has actually currently been harmed.

Win32/Spatet.C distribution channels.

In numerous corners of the globe, Win32/Spatet.C expands by jumps and bounds. Nevertheless, the ransom money notes and also techniques of obtaining the ransom money quantity may differ relying on certain neighborhood (local) setups. The ransom money notes and tricks of extorting the ransom money amount may differ depending on specific local (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software program.

    In specific locations, the Trojans typically wrongfully report having spotted some unlicensed applications enabled on the sufferer’s device. The sharp after that demands the individual to pay the ransom.

    Faulty statements regarding illegal content.

    In countries where software application piracy is less popular, this approach is not as reliable for the cyber fraudulences. Additionally, the Win32/Spatet.C popup alert might falsely assert to be stemming from a law enforcement institution as well as will certainly report having situated child pornography or various other unlawful data on the gadget.

    Win32/Spatet.C popup alert might falsely assert to be deriving from a legislation enforcement organization as well as will report having located child pornography or various other prohibited information on the gadget. The alert will similarly have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: F3989168
md5: 8cf6ac8ad136ccae49b2aa0a9effdf80
name: 8CF6AC8AD136CCAE49B2AA0A9EFFDF80.mlw
sha1: 2f320c94c6e039fc7a571ec326cf0cd6a213245e
sha256: 91b137c0a7b65d1d2c443e92327e10f87e17d18aa8218fa7efca92aa91df0267
sha512: d01496f9edd4fadc81d7841ba56cde62e7ac3876638524de76543ea516ecfed0a6c48ea4c2e5085c2e6deb7c2f82f2a6cbeb9a97fb475c45d9cf545d37e05022
ssdeep: 6144:74ABF94OrpAuO/50BTnyZsSaXhh4XAS79hO9R0O91FG+h:0UEGLyWSKaAS79MEqfG0
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Spatet.C also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.RebhipB.Worm
K7AntiVirus Trojan ( 0038fc811 )
Elastic malicious (high confidence)
DrWeb BackDoor.Siggen.49176
Cynet Malicious (score: 100)
CAT-QuickHeal Worm.Rebhip.A8
ALYac Generic.Rebhip.0A8EB9C0
Cylance Unsafe
Zillya Trojan.Llac.Win32.3683
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Starter.ali1001008
K7GW Trojan ( 0038fc811 )
Baidu Win32.Trojan.Agent.co
Cyren W32/Rebhip.A.gen!Eldorado
Symantec W32.Spyrat
ESET-NOD32 Win32/Spatet.C
Zoner Trojan.Win32.60048
APEX Malicious
Avast Win32:AutoRun-CIN [Trj]
ClamAV Win.Trojan.Agent-36200
Kaspersky Trojan.Win32.Llac.laan
BitDefender Generic.Rebhip.0A8EB9C0
NANO-Antivirus Trojan.Win32.CFI.dqdkzl
ViRobot Worm.Win32.Autorun.289792
SUPERAntiSpyware Trojan.Agent/Gen-Rebhip
MicroWorld-eScan Generic.Rebhip.0A8EB9C0
Tencent Trojan.Win32.Llac.dcro
Ad-Aware Generic.Rebhip.0A8EB9C0
BitDefenderTheta AI:Packer.B1FB9E1F1B
VIPRE Worm.Win32.Rebhip.A (v)
TrendMicro TSPY_SPATET.SMT
McAfee-GW-Edition BehavesLike.Win32.Backdoor.dc
FireEye Generic.mg.8cf6ac8ad136ccae
Emsisoft Generic.Rebhip.0A8EB9C0 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Llac.kp
Avira TR/Spy.Gen
eGambit RAT.CyberGate
Kingsoft Win32.Heur.KVM007.a.(kcloud)
Microsoft TrojanSpy:Win32/Rebhip.A!upx
Gridinsoft Backdoor.Win32.Fynloski.vl!i
GData Generic.Rebhip.0A8EB9C0
TACHYON Trojan/W32.DP-Agent.289792.K
AhnLab-V3 Trojan/Win32.Llac.R1845
Acronis suspicious
McAfee Generic PWS.di
MAX malware (ai score=89)
VBA32 Trojan-Spy.Delf.0729
Malwarebytes Generic.Trojan.Malicious.DDS
Panda Trj/Ransom.AB
TrendMicro-HouseCall TSPY_SPATET.SMT
Rising Worm.Rebhip!1.A338 (CLOUD)
Ikarus Trojan.Win32.Llac
Fortinet W32/Llac.GFU!tr
AVG Win32:AutoRun-CIN [Trj]
Paloalto generic.ml

How to remove Win32/Spatet.C virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/Spatet.C files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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If the guide doesn’t help you to remove Win32/Spatet.C you can always ask me in the comments for getting help.

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References

  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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