Ransom: Win32/Tescrypt. E

Ransom: Win32/Tescrypt. E

What is Ransom:Win32/Tescrypt.E infection?

In this short article you will certainly find about the definition of Ransom:Win32/Tescrypt.E and its adverse impact on your computer. Such ransomware are a form of malware that is specified by on-line fraudulences to require paying the ransom by a target.

Most of the cases, Ransom:Win32/Tescrypt.E ransomware will certainly advise its victims to start funds transfer for the purpose of counteracting the amendments that the Trojan infection has actually introduced to the victim’s tool.

Ransom:Win32/Tescrypt.E 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 (Process Hollowing);
  • Compression (or decompression);
  • 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.
  • 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;
  • Uses Windows utilities for basic functionality;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware;
  • Modifies boot configuration settings;
  • 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
  • Attempts to identify installed AV products by registry key;
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the sufferer’s disk drive — so the victim can no longer use the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Ransom:Win32/Tescrypt.E

The most common channels where Ransom:Win32/Tescrypt.E Ransomware are injected are:

  • By means of phishing emails;
  • As a consequence of user ending up on a resource that holds a destructive software;

As quickly as the Trojan is efficiently infused, it will certainly either cipher the data on the sufferer’s computer or protect against the gadget from operating in a correct fashion – while additionally putting a ransom note that mentions the need for the targets to effect the settlement for the purpose of decrypting the papers or restoring the file system back to the preliminary problem. In most circumstances, the ransom money note will turn up when the client reboots the PC after the system has currently been harmed.

Ransom:Win32/Tescrypt.E circulation channels.

In various edges of the world, Ransom:Win32/Tescrypt.E expands by jumps and bounds. Nevertheless, the ransom notes and methods of extorting the ransom amount might differ depending on particular neighborhood (regional) settings. The ransom notes and tricks of obtaining the ransom quantity may vary depending on certain neighborhood (regional) settings.

For example:

    Faulty signals about unlicensed software program.

    In particular locations, the Trojans usually wrongfully report having detected some unlicensed applications enabled on the target’s gadget. The sharp after that demands the individual to pay the ransom money.

    Faulty declarations concerning prohibited material.

    In countries where software application piracy is less prominent, this technique is not as efficient for the cyber frauds. Additionally, the Ransom:Win32/Tescrypt.E popup alert might falsely claim to be originating from a law enforcement institution as well as will report having located youngster pornography or other prohibited data on the tool.

    Ransom:Win32/Tescrypt.E popup alert may incorrectly declare to be deriving from a law enforcement institution and also will report having situated youngster pornography or various other unlawful data on the gadget. The alert will in a similar way consist of a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: A90C2AB9md5: 1be894f5416d0f977d13493f49c57da1name: 1BE894F5416D0F977D13493F49C57DA1.mlwsha1: 120c656610853ffc2cdc5d4a44df41bafcc54bb2sha256: 951d699bef5361d2293fd78271821573b78a4a87d7fb832ecf5fd7d385b33e82sha512: 0599ecb2ffd1d3f4f3659c9099652643e941741fc39ded54d7cd4fcf686d5eb7e42d7bf905f4ee80b2ff061ea2c4632bca80088e729ab1a881ec57c97132c868ssdeep: 12288:W6ETD16B70+JXePNqB9KPND4TGXakE8/VeM3TD16B70+JXePNqB9KPND4TGXakE:W6CD16dziNqB9WPKfxMDD16dziNqB9Wtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2018InternalName: OperativeFileVersion: 177, 55, 27, 23CompanyName: David HarrisPrivateBuild: 130, 156, 198, 49LegalTrademarks: PeriodicalComments: IncliningProductName: Pride ProsperSpecialBuild: 23, 20, 84, 105ProductVersion: 70, 231, 91, 227FileDescription: Neutraliser Intersperse PrenatalOriginalFilename: Raftl.EXE

Ransom:Win32/Tescrypt.E also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 0055e3ef1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.3729
CynetMalicious ()
CAT-QuickHealRansom.TeslaCrypt.C5
ALYacTrojan.Agent.BQEJ
CylanceUnsafe
ZillyaTrojan.Filecoder.Win32.1883
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWTrojan ( 0055e3ef1 )
Cybereasonmalicious.5416d0
BaiduWin32.Trojan.Filecoder.k
CyrenW32/S-28ac89fa!Eldorado
SymantecRansom.TeslaCrypt!g1
ESET-NOD32Win32/Filecoder.TeslaCrypt.I
APEXMalicious
AvastWin32:Malware-gen
KasperskyPacked.Win32.Tpyn
BitDefenderTrojan.Agent.BQEJ
NANO-AntivirusTrojan.Win32.Encoder.eaaxwh
SUPERAntiSpyware
MicroWorld-eScanTrojan.Agent.BQEJ
TencentMalware.Win32.Gencirc.10c37562
Ad-AwareTrojan.Agent.BQEJ
SophosML/PE-A + Mal/Ransom-EK
ComodoMalware@#3cxwark2nm2mg
BitDefenderThetaGen:NN.ZexaF.34670.Vq0@aqo3cNg
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPLOCKY.SM1
McAfee-GW-EditionRansomware-FDS!1BE894F5416D
FireEyeGeneric.mg.1be894f5416d0f97
EmsisoftTrojan.Agent.BQEJ (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Banker.Shifu.di
WebrootTrojan.Dropper.Gen
AviraHEUR/AGEN.1103118
MicrosoftRansom:Win32/Tescrypt.E
GDataTrojan.Agent.BQEJ
AhnLab-V3Trojan/Win32.Teslacrypt.R173404
McAfeeRansomware-FDS!1BE894F5416D
MAXmalware (ai score=84)
VBA32Trojan.Encoder
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_HPLOCKY.SM1
RisingTrojan.Ransom-Tesla!1.A322 (CLOUD)
YandexTrojan.GenAsa!Dli68odS+jc
IkarusTrojan.Win32.Filecoder
FortinetW32/Filecoder.I!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Tescrypt.HwcBEpsA
Marcus Vance
Author

Marcus Vance

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.