Ransom Trojan

Trojan.Ransom.AJJ (file analysis)

Malware Removal

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: 5F0FC920
md5: 8bbae7c5ffd12f51b9bb89e086ea6770
name: 8BBAE7C5FFD12F51B9BB89E086EA6770.mlw
sha1: e4fd4be9c20a9f136edf6943c2669699e46ce605
sha256: f4e9047287ae3bd5e9907d7e19fbe7efc2acbe11dd13b0775d82309789991556
sha512: c9d244528de40f2e697ebf0d5836664fb44174156e3b73e09b5da3de493f8b13d7de3495c3c9a79a820ce7e1bb9c371fcce52d8492b4298f38ca90ba293541ed
ssdeep: 6144:FELoZHPMlDuO5N+s/jw37KWbUZ25nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnfn:msNklLNw3OWQCnnnnnnnnnnnnnnnnnn
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Trojan.Ransom.AJJ also known as:

BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0055dd191 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Siggen1.31455
CynetMalicious (score: 100)
CAT-QuickHealRansom.TeslaCrypt.A3
ALYacTrojan.Ransom.AJJ
CylanceUnsafe
ZillyaTrojan.Bitman.Win32.213
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_60% (D)
AlibabaRansom:Win32/Tescrypt.6f4bb08f
K7GWTrojan ( 0055dd191 )
Cybereasonmalicious.5ffd12
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Kryptik.DGYY
APEXMalicious
AvastWin32:GenMalicious-KGD [Trj]
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.AJJ
NANO-AntivirusTrojan.Win32.Bitman.drednm
MicroWorld-eScanTrojan.Ransom.AJJ
TencentMalware.Win32.Gencirc.114cc093
Ad-AwareTrojan.Ransom.AJJ
SophosMal/Generic-S
ComodoMalware@#agqcuqkm6aeb
BitDefenderThetaGen:NN.ZexaF.34628.vqW@a8eH8vfi
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_GEN.R034E01H415
McAfee-GW-EditionBehavesLike.Win32.MultiPlug.fh
FireEyeGeneric.mg.8bbae7c5ffd12f51
EmsisoftTrojan.Ransom.AJJ (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/Bitman.bw
WebrootW32.Rogue.Gen
AviraHEUR/AGEN.1107198
eGambitGeneric.Malware
MicrosoftRansom:Win32/Tescrypt.A
ArcabitTrojan.Ransom.AJJ
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.AJJ
AhnLab-V3Trojan/Win32.MDA.R146572
Acronissuspicious
McAfeeRansom-Tescrypt!8BBAE7C5FFD1
MAXmalware (ai score=100)
VBA32BScope.Trojan.Encoder
PandaTrj/CI.A
TrendMicro-HouseCallTROJ_GEN.R034E01H415
RisingRansom.Tescrypt!8.3AF (CLOUD)
YandexTrojan.GenAsa!v51Uje9eEIk
IkarusTrojan-Ransom.TeslaCrypt2
FortinetW32/Filecoder.ER!tr
AVGWin32:GenMalicious-KGD [Trj]
Qihoo-360Win32/Trojan.Ransom.5e5

How to remove Trojan.Ransom.AJJ?

Trojan.Ransom.AJJ removal tool
  • 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.

About the author

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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