A sex pest cab driver who prowled a town centre looking for girls is facing jail after being convicted of sexual assault.
Mirzaman Hashmi was found guilty of the attack on a 21-year-old at Isleworth Crown Court on Monday.
The 22-year-old was out on bail when he approached his victim in Ealing Broadway on January 4.
Prosecutor Simon Wild said: "She thought he was drunk and acting strangely and she tried to shake him off but he insisted on walking with her.
"When they got to Woodfield Gardens he grabbed her from behind and put his hand under her top and touched her breasts.
"She began to scream and he put his hand over her mouth, pushed her to the ground and kissed her. He pulled her jeans and pants down and assaulted her.
"He was stopped when lights came on and a householder, who had been woken by the screams, came to the woman's rescue. The defendant then ran off."
The young woman was examined and DNA from Hashmi was found. He was arrested in Harlesden in February and denied the incident. When faced with the DNA evidence he admitted it had happened but claimed the young woman wanted to have sex with him and he stopped when she changed her mind.
But Hashmi, of Camden, was cleared of an earlier alleged attack on a girl he picked up in his unlicensed cab from Ealing Broadway on December 2.
The 32-year-old, of Harrow, claimed he touched her breast but that it was accidental and the jury believed him.
Remanding him in custody for presentence reports, Judge Sam Katkhuda said: "It's a question of how long the prison sentence should be. This is a very serious matter."
Hashmi will return to court in October for sentencing.