Categories: RansomTrojan

Trojan.Ransom.AJJ (file analysis)

The Trojan.Ransom.AJJ is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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What Trojan.Ransom.AJJ virus can do?

  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Executed a process and injected code into it, probably while unpacking
  • Attempts to remove evidence of file being downloaded from the Internet
  • Attempts to delete volume shadow copies
  • Network activity contains more than one unique useragent.
  • Installs itself for autorun at Windows startup
  • Exhibits possible ransomware file modification behavior
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine Trojan.Ransom.AJJ?


File Info:

crc32: 5F0FC920md5: 8bbae7c5ffd12f51b9bb89e086ea6770name: 8BBAE7C5FFD12F51B9BB89E086EA6770.mlwsha1: e4fd4be9c20a9f136edf6943c2669699e46ce605sha256: f4e9047287ae3bd5e9907d7e19fbe7efc2acbe11dd13b0775d82309789991556sha512: c9d244528de40f2e697ebf0d5836664fb44174156e3b73e09b5da3de493f8b13d7de3495c3c9a79a820ce7e1bb9c371fcce52d8492b4298f38ca90ba293541edssdeep: 6144:FELoZHPMlDuO5N+s/jw37KWbUZ25nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnfn:msNklLNw3OWQCnnnnnnnnnnnnnnnnnntype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Ransom.AJJ also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0055dd191 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Siggen1.31455
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.TeslaCrypt.A3
ALYac Trojan.Ransom.AJJ
Cylance Unsafe
Zillya Trojan.Bitman.Win32.213
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Tescrypt.6f4bb08f
K7GW Trojan ( 0055dd191 )
Cybereason malicious.5ffd12
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.DGYY
APEX Malicious
Avast Win32:GenMalicious-KGD [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.AJJ
NANO-Antivirus Trojan.Win32.Bitman.drednm
MicroWorld-eScan Trojan.Ransom.AJJ
Tencent Malware.Win32.Gencirc.114cc093
Ad-Aware Trojan.Ransom.AJJ
Sophos Mal/Generic-S
Comodo Malware@#agqcuqkm6aeb
BitDefenderTheta Gen:NN.ZexaF.34628.vqW@a8eH8vfi
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_GEN.R034E01H415
McAfee-GW-Edition BehavesLike.Win32.MultiPlug.fh
FireEye Generic.mg.8bbae7c5ffd12f51
Emsisoft Trojan.Ransom.AJJ (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/Bitman.bw
Webroot W32.Rogue.Gen
Avira HEUR/AGEN.1107198
eGambit Generic.Malware
Microsoft Ransom:Win32/Tescrypt.A
Arcabit Trojan.Ransom.AJJ
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.AJJ
AhnLab-V3 Trojan/Win32.MDA.R146572
Acronis suspicious
McAfee Ransom-Tescrypt!8BBAE7C5FFD1
MAX malware (ai score=100)
VBA32 BScope.Trojan.Encoder
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_GEN.R034E01H415
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.GenAsa!v51Uje9eEIk
Ikarus Trojan-Ransom.TeslaCrypt2
Fortinet W32/Filecoder.ER!tr
AVG Win32:GenMalicious-KGD [Trj]
Qihoo-360 Win32/Trojan.Ransom.5e5

How to remove Trojan.Ransom.AJJ?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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