Ransom:Win32/Tobfy.A

What is Ransom:Win32/Tobfy.A infection?

In this article you will certainly discover about the interpretation of Ransom:Win32/Tobfy.A and its adverse influence on your computer system. Such ransomware are a kind of malware that is specified by on-line frauds to require paying the ransom by a target.

In the majority of the cases, Ransom:Win32/Tobfy.A ransomware will certainly instruct its sufferers to initiate funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has introduced to the victim’s device.

Ransom:Win32/Tobfy.A Summary

These adjustments can be as adheres to:

• Injection (inter-process);
• Injection (Process Hollowing);
• 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.
• Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
• The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Executed a process and injected code into it, probably while unpacking;
• Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
• 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
• Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
• Ciphering the files situated on the victim’s hard disk drive — so the sufferer can no more make use of the information;
• Preventing normal accessibility to the victim’s workstation;

Ransom:Win32/Tobfy.A

The most typical networks through which Ransom:Win32/Tobfy.A Trojans are infused are:

• By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
• As a consequence of individual ending up on a resource that organizes a harmful software application;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s PC or avoid the device from operating in a correct fashion – while also placing a ransom money note that states the demand for the sufferers to effect the payment for the function of decrypting the papers or recovering the data system back to the first problem. In a lot of circumstances, the ransom money note will certainly show up when the customer restarts the COMPUTER after the system has currently been harmed.

Ransom:Win32/Tobfy.A circulation channels.

In different corners of the globe, Ransom:Win32/Tobfy.A expands by jumps as well as bounds. Nonetheless, the ransom money notes and also methods of extorting the ransom money amount may vary depending upon specific neighborhood (local) setups. The ransom money notes and techniques of obtaining the ransom amount might vary depending on certain local (local) settings.

For instance:

Faulty signals about unlicensed software program.

In certain locations, the Trojans frequently wrongfully report having actually identified some unlicensed applications enabled on the target’s tool. The alert after that requires the individual to pay the ransom money.

Faulty declarations regarding unlawful web content.

In countries where software program piracy is much less prominent, this technique is not as efficient for the cyber frauds. Additionally, the Ransom:Win32/Tobfy.A popup alert may wrongly claim to be deriving from a police organization as well as will certainly report having situated youngster pornography or other prohibited information on the gadget.

Ransom:Win32/Tobfy.A popup alert may wrongly assert to be obtaining from a legislation enforcement institution and also will certainly report having located child pornography or other illegal information on the gadget. The alert will similarly contain a demand for the customer to pay the ransom.

Technical details

File Info:
crc32: 5FE9F58Dmd5: 2031bacf48d2fd68238cce7f9587326dname: 2031BACF48D2FD68238CCE7F9587326D.mlwsha1: 8d48327a43f03cfe660adee30dc080ccbbdeac39sha256: 7ff1012dd550d17cdf477400657cf74c7af82ea1680a0e664c4d984022feca89sha512: 86ac84c6631e3d5bfa09c0e2b3f8d0791ef813dc12461a298ffd094d65bf66310451f18f0e71a502da557a90659a3908fb0efeb64703101c5435a060937c15f0ssdeep: 1536:KyeMLyr2hLKaj5ZKRr7egv65KU1gtlSGUGlGIrzQhcGaNIra5QmswrLffFsuvou:Kye7r2huvvIKU1gLGIrziBfa5dsedsutype: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
Version Info:
0: [No Data]

Ransom:Win32/Tobfy.A also known as:

GridinSoft	Trojan.Ransom.Gen
K7AntiVirus	Trojan ( 0040f1d41 )
Elastic	malicious (high confidence)
DrWeb	Trojan.Winlock.6673
Cynet	Malicious (score: 100)
ALYac	Gen:Variant.Symmi.3468
Cylance	Unsafe
Zillya	Trojan.Foreign.Win32.1718
Sangfor	Trojan.Win32.Save.a
Alibaba	Trojan:Win32/Injector.5d501cee
K7GW	Trojan ( 0040f1d41 )
Cybereason	malicious.f48d2f
ESET-NOD32	a variant of Win32/Injector.XUL
APEX	Malicious
TotalDefense	Win32/Ransom.ATQ
Avast	Sf:Crypt-EX [Trj]
Kaspersky	HEUR:Trojan.Win32.Generic
BitDefender	Gen:Variant.Symmi.3468
NANO-Antivirus	Virus.Win32.Gen-Crypt.ccnc
ViRobot	Trojan.Win32.A.Foreign.89088.B
MicroWorld-eScan	Gen:Variant.Symmi.3468
Tencent	Win32.Trojan.Generic.Hnav
Ad-Aware	Gen:Variant.Symmi.3468
Sophos	ML/PE-A + Troj/Ransom-JQ
Comodo	Suspicious@#2w1v7s4xzs9no
F-Secure
BitDefenderTheta	Gen:NN.ZexaF.34628.fGW@aGZdsDmi
VIPRE	Worm.Win32.Dorkbot.i (v)
TrendMicro	TROJ_RANSOM.SMO7
McAfee-GW-Edition	BehavesLike.Win32.Generic.mc
FireEye	Generic.mg.2031bacf48d2fd68
Emsisoft	Gen:Variant.Symmi.3468 (B)
SentinelOne	Static AI – Suspicious PE
Jiangmin	Trojan/Foreign.aze
Webroot	Trojan.Dropper.Gen
Avira	TR/Crypt.XPACK.Gen8
Antiy-AVL	Trojan/Win32.AGeneric
Kingsoft	Win32.Troj.Undef.(kcloud)
Microsoft	Ransom:Win32/Tobfy.A
Arcabit	Trojan.Symmi.DD8C
AegisLab	Trojan.Win32.Foreign.j!c
ZoneAlarm	HEUR:Trojan.Win32.Generic
GData	Gen:Variant.Symmi.3468
AhnLab-V3	Trojan/Win32.Yakes.C164406
Acronis	suspicious
McAfee	Ransom-ABD.gen.a
MAX	malware (ai score=100)
VBA32	BScope.Malware-Cryptor.Oop
Malwarebytes
Panda	Trj/Genetic.gen
TrendMicro-HouseCall	TROJ_RANSOM.SMO7
Rising	Ransom.Tobfy!8.339 (CLOUD)
Yandex	Trojan.Injector!iW5URzbgSQU
Ikarus	Trojan.Win32.Yakes
Fortinet	W32/Kryptik.4C06!tr
AVG	Sf:Crypt-EX [Trj]
Paloalto	generic.ml
Qihoo-360	Win32/Trojan.Ransom.683

How to remove Ransom:Win32/Tobfy.A ransomware?

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">².

Download GridinSoft Anti-Malware.

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

Download GridinSoft Anti-Malware

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.

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.

Press “Install” button.

Once installed, Anti-Malware will automatically run.

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Ransom:Win32/Tobfy.A 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.

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.

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:

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Ransom:Win32/Tobfy.A you can always ask me in the comments for getting help.

References

1. GridinSoft Anti-Malware Review from HowToFix site:
2. More information about GridinSoft products: